Do you have a question about the C435HD and is the answer not in the manual?
Questions and answers
Tina
March 28, 2025
My headset mysteriously stopped working with the audiocode C435HD desktop phone
2 comments:
Tina
March 28, 2025
Any troubleshooting or ideas as to why this happened; headphones work with computer fine to listen to music and worked fine earlier this week with desktop phone
Mr. Anderson
March 28, 2025
The AudioCodes C435HD headset may have stopped working with the desktop phone due to the phone entering hibernation mode after a period of inactivity. This can cause the device to become unavailable, affecting headset functionality and call queue performance. Check the phone or Microsoft Teams settings to disable or adjust power-saving features to prevent hibernation.
This answer is automatically generated
Yukako Yamazaki
February 28, 2025
I want to correctly adjust the time displayed on the telephone.
1 comments:
Mr. Anderson
February 28, 2025
To adjust the time on the AudioCodes C435HD telephone, configure the following settings:
1. Set the Time Zone: - Use the parameter `date_time/timezone` and set it to the desired time zone (e.g., `+02:00` for UTC+2).
2. Enable or Disable Daylight Saving Time (DST): - Use `date_time/time_dst`, setting it to `1` to enable DST or `0` to disable it.
3. Set the Time Format: - Use `date_time/time_format`, setting it to `12` for a 12-hour format or `24` for a 24-hour format.
These settings can be applied through the phone’s configuration interface.
This answer is automatically generated
jacki
February 3, 2025
What headset will work with the audiocodes 435 hd
1 comments:
Mr. Anderson
February 10, 2025
The AudioCodes C435HD IP Phone supports headsets through an RJ9 port and a USB-A port. It is compatible with USB headsets and RJ9-wired headsets. Additionally, it has an EHS (Electronic Hook Switch) RJ11 port, which may support wireless headsets with EHS compatibility.
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User's and Administrator's Manual AudioCodes 400HD IP Phone Series C435HD IP Phones Microsoft Teams Application Version 1.12 ...
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Customer technical support and services are provided by AudioCodes or by an authorized AudioCodes Service Partner. For more information on how to buy technical support for AudioCodes products and for contact information, please visit our website at ...
Content C435HD Users & Administrator's Manual Table of Contents 1 Overview Specifications Allowing URLs, Ports (Security) Security Guidelines for Android-based Native Teams Devices Android-Level Security Hardening Google Play Services Running Android in Kiosk Mode Screen Lock AudioCodes Private Key Android Debug Bridge (ADB)
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Content C435HD Users & Administrator's Manual Multi-Cloud Sign-in Remote Provisioning and Sign-in from Teams Admin Center Getting Acquainted with the Phone Screen Setting Status Configuring Teams Application Settings Using the People Screen Accessing Voicemail Using Audio Devices Transferring Calls and Meetings across Devices...
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Content C435HD Users & Administrator's Manual Network Administrators Teams IP Phone Utility Capturing the Phone Screen Running Tcpdump Getting Information about Phones Remote Logging (Syslog) Getting Diagnostics Getting a Bug Report Activating DSP Recording Deactivating DSP Recording Getting the Phone IP Address...
CHAPTER 1 Overview C435HD Users & Administrator's Manual Overview The AudioCodes C435HD IP phones are Microsoft Teams-native entry level/common area phones designed to support the next generation of enterprise collaboration technologies with a large color LCD screen and full UC integration for the Native Microsoft Teams Online market. The phones can be managed by the Microsoft Teams & Skype for Business Admin Center. For more information, see here Feature highlights: ■ Native support for Microsoft Teams ■ Color screen 4.3": Graphic, 480x272 resolution, with multi-lingual support ■ Multi-lingual support ■ Full duplex speakerphone and headset connectivity ■ Dual GbE support ■ USB headset support ■ PoE or external power supply ■...
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CHAPTER 1 Overview C435HD Users & Administrator's Manual Feature Details hold/resume, transfer, end call); PSTN calls; Visual Voicemail; 911 support ■ Calendar and Presence (roadmap feature) (Calendar Access and Meeting Details; Presence Integration; Exchange Calendar Integration; Contact Picture Integration; Corporate Directory Access) ■ Meetings (roadmap feature) (One-click Join for Meetings; Join Skype for Business meetings; Meeting Call controls [Mute/unmute, hold/resume, hang up, add/remove participant]; Meeting Details. See also here ■ Configuration Microsoft Teams & Skype for Business Admin Center (Provisioning and and Logging) Management ■ AudioCodes Device Management and AudioCodes Redirect Server for monitoring, upgrading and configuring ■ Debugging AudioCodes' Teams IP Phone Utility (see Teams IP Phone Utility on Tools page 75 ) ■ Log upload to Microsoft server (certification for 3rd party Skype for ...
CHAPTER 1 Overview C435HD Users & Administrator's Manual Feature Details Ethernet) ports: LAN and PC port ✔ RJ-9 port (jack) for headset ✔ 1 x USB port for headset support ✔ RJ-11 interface ■ Power: ✔ DC jack adapter 12V ✔ Power supply AC 100 ~ 240V ✔ PoE Class 3: IEEE802.3af (optional) ■ Keys: ✔ VOICE MAIL message hotkey (including LED) ✔ 4-way navigation button with OK key ✔ MENU ✔ HOLD ✔ MUTE (including LED) ✔ TRANSFER ✔ VOLUME control key ✔...
CHAPTER 1 Overview C435HD Users & Administrator's Manual Server Role Service Name Port Protocol Notes AudioCodes AudioCodes 443 HTTPS AudioCodes device Device management server Manager AudioCodes AudioCodes 443 HTTPS AudioCodes redirect service Redirect redirect.audiocodes.com service NTP Android NTP 123 timeserver Time Zone Time Zones 443 HTTPS Time Zone Database ( often ...
CHAPTER 1 Overview C435HD Users & Administrator's Manual AudioCodes recommends visiting Microsoft's technical pages for more security guidelines and policies for Microsoft Teams adoption: ■ Overview of security and compliance - Microsoft Teams | Microsoft Docs ■ Identity models and authentication for Microsoft Teams - Microsoft Teams | Microsoft Docs ■ Sign in to Microsoft Teams - Microsoft Teams | Microsoft Docs Android-Level Security Hardening Major Android-level system-level developments have been incorporated into AudioCodes' Native Teams devices to improve security: ■ See Google Play Services below ■ See Running Android in Kiosk Mode on the next page ■ See Screen Lock on the next page ■ See AudioCodes Private Key on the next page ■ See Android Debug Bridge (ADB) on the next page ■...
Screen Lock AudioCodes Native Teams devices use a screen lock mechanism to prevent any malicious user/users from gaining access to Calendar information and / or Active Directory list of ...
CHAPTER 1 Overview C435HD Users & Administrator's Manual 365 services and AudioCodes' managed services such as the One Voice Operations Center (OVOC). Without a Web browser, malicious user/users will not be able to access the device and browse from it as a trusted device into the customer network. Remote Configuration Management AudioCodes Native Teams devices do not have an embedded Web server. Configuration and management are performed using one of the following remote interfaces: ■ Microsoft Teams Admin Center (for Native Teams devices) over HTTPS protocols, enabled after a successful sign-in authentication process. ■ AudioCodes Device Manager (part of AudioCodes' OVOC suite) over HTTPS. ■ Debugging interface over SSH. Note that SSH must be disabled by default and enabled only per specific case for debugging purposes only. AudioCodes Device Manager Validation The AudioCodes Native Teams devices validate the AudioCodes Device Manager identity using a known Root CA: ■ The device is shipped with known Root CAs installed. See AudioCodes Root CA Certificate ...
CHAPTER 1 Overview C435HD Users & Administrator's Manual Device Certificate AudioCodes Native Teams devices are shipped with a unique certificate which is signed by AudioCodes Root CA. Data Protection AudioCodes Native Teams devices run Android which has integral procedures for protecting and securing user data. Debugging Interface ■ The AudioCodes Native Teams devices leverage SSH as a debugging interface. ■ AudioCodes recommends that customers disable SSH on devices via AudioCodes' Device Manager (OVOC). ■ AudioCodes recommends changing the Admin password from the default, via the Teams Admin Center or AudioCodes' Device Manager (OVOC). ■ When a device - or multiple devices - needs to be debugged, users can enable SSH on it / them, access SSH with the new Admin password for the debugging phase, and disable SSH once debugging is finished. Android Security Updates AudioCodes regularly adopts and integrates Android security updates. ...
CHAPTER 2 Setting up the Phone C435HD Users & Administrator's Manual Setting up the Phone Unpacking When unpacking, make sure the items listed in the phone's Quick Guide are present and undamaged. If anything appears to be missing or broken, contact the distributor from whom you ...
CHAPTER 2 Setting up the Phone C435HD Users & Administrator's Manual Device Description Use the following graphics to identify and familiarize yourself with the device's hardware functions. Front View The front view of the phone is shown in the figure and described in the table. ...
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CHAPTER 2 Setting up the Phone C435HD Users & Administrator's Manual Item # Label Name Description displays calling information. ■ Navigation Control / OK Press the button's upper rim to scroll up menus / items. ■ Press the button's lower rim to scroll down. ■ Press the button's left or right rim to move the cursor left or right (when editing a contact number for example). ■ Press OK to select a menu/item/option. Voicemail Retrieves voicemail ...
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CHAPTER 2 Setting up the Phone C435HD Users & Administrator's Manual Item # Label Name Description listening. The network administrator can disable it if necessary. Speaker Activates the speaker, allowing a hands-free conversation. Headset Activates a call using an external headset. Mute Mutes a call. ▲ VOL Increases or decreases the volume of the ▼ VOL handset, headset, speaker, ring tone and call progress tones. ‘Back’ key Returns you back to the previous screen. USB port Allows using a USB ...
CHAPTER 2 Setting up the Phone C435HD Users & Administrator's Manual Rear View The ports located on the rear of the phone are described in the table. Table 2-2: Rear View Description Item # Label Description RJ-45 port to connect to the Ethernet LAN cable for the LAN connection (uplink - 10/100/1000 Mbps). If you're using Power over Ethernet (PoE), power to the phone is supplied from the Eth- ernet cable (draws power from either a spare line or a signal line). RJ-45 port to connect the phone to a PC (10/100/1000 Mbps downlink). 12V DC power jack that connects to the AC power adapter. [RJ-11 port] Used as a serial console port to access the phone's terminal. Headset jack, i.e., RJ-9 port that connects to an external headset. - 15 -...
CHAPTER 2 Setting up the Phone C435HD Users & Administrator's Manual Cabling See the phone's Quick Guide shipped with the device and also available from AudioCodes for detailed information on how to cable the phone. Mounting the Phone The phone can be mounted on a: ■ Desk ■ Wall See the phone's Quick Guide shipped with the device and also available from AudioCodes for detailed information on how to mount the phone. See also here f or a clip showing the principle of how to mount an AudioCodes IP phone. The principle is the same across all AudioCodes IP phones. Before Using AudioCodes Devices AudioCodes recommends frequently cleaning devices' screens especially screens on devices in ...
CHAPTER 3 Starting up C435HD Users & Administrator's Manual Starting up Here's how to start up the phone. ➢ To start up: Connect the phone to the network (or reset it); the language selection screen is displayed by default. Select the language of your choice and then configure device settings to suit specific requirements. It will be necessary to repeat this only if the phone is restored to default settings. Configuring Device Settings The section familiarizes you with the phone’s settings. Phones are delivered to customers ...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual View the settings under 'User'. Select a setting to open it. Use the table following as reference. [To view settings related to the network administrator, scroll down and open 'Device Administration']. Table 3-1: Device Settings Setting Description User Display Opens the ‘Display’ screen [Brightness level]. The phone's screen supports different brightness levels. Choose the level that suits your requirements. ■ Sleep ■ Screen saver - 18 -...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description Sound Allows you to customize phone volume for a friendlier user experience. Ring volume at n% Date & time Date and time are automatically retrieved from the deployed Network Time Protocol (NTP) server. Use 24-hour format [Allows you to select the Time format] Power Saving Allows users to contribute to power saving in the enterprise. - 19 -...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description Enable power saving Start time [The device consumes minimal energy before the user arrives at the office] End time [The device consumes minimal energy after the user leaves the office] Debugging Enables users to reboot the device. Log in as Administrator for more debugging settings to be available. Security Helps secure the enterprise telephony network against breaches. Screen lock [The phone automatically locks after a configured period to secure it against unwanted use. If left unattended for 10 minutes (default), it automatically locks and is inaccessible to anyone who doesn't know its lock code.] Make passwords available See 'Lock Screen & PIN' under Configuring Teams Application Settings on page 44 Languages Allows users to customize inputting to suit personal requirements. & input - 20 -...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description About Enables users to determine device information. [Android 7.1.2] To determine the device’s IP address, select the ‘Status’ option. To get information about the version, select ‘Version info’. - 21 -...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description To get information about the Android version, select ‘Android version’. Device Administration Device Allows the user to log in as Administrator, necessary for some of the administration debugging options. It is password protected. Default password: 1234 (or 1111 in early versions). After logging in as an Administrator, the user can log out | change password. Select Login and then in the Login screen that opens, select the 'Enter password' field and use the virtual keyboard to enter the password ( 1234 or 1111 ). Note that the virtual keyboard pops up for all - 22 -...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description ‘Settings’ fields to allow inputting characters and / or numbers. Two virtual keyboard types can be displayed: Numeric o r QWERTY. The virtual keyboard is also displayed when the network administrator needs to enter an IP address to debug, or when they need to enter their PIN lock for the security tab. After logging in, scroll down in the Settings screen to the section 'Device Administration'. Modify network Enables the Admin user to determine network information and to modify network settings. IP Address [Read Only] - 23 -...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description IP Settings [DHCP or Static IP] Network state [Read Only] Enable PC port Enable PC port mirror Proxy 802.1x Settings VLAN Settings. Allows you to configure the VLAN mode Manual , CDP only or LLDP only . Proxy The phone can be configured with an HTTP Proxy server by an Admin user in two ways: ■ Manually . T he Admin user can use this method to configure HTTP proxy server parameters through the Teams application: Log in as Administrator and select Modify network . Select the Proxy option and then configure the proxy host ...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description The proxy setting is provided in a Proxy Auto-Configuration (PAC) file that contains a set of rules coded in JavaScript which allows a web browser to determine whether to send web traffic directly to the Internet or to be sent via a proxy server. PAC files control how the phone handles HTTP, HTTPS and FTP traffic. Example of a basic PAC file: function FindProxyForURL(url, host) return "PROXY 10.13.2.40:3128"; 802.1x Settings 802.1X Authentication is the IEEE Standard for Port-based Network Access Control (PNAC). See https://1.ieee802.org/security/802-1x/ for more information. To configure an 802.1X Authentication method: From the ‘Modify Network’ screen (as an Admin), access the 802.1x Settings screen. - 25 -...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description From the 'EAP method' drop-down, select the method: MD5 or TLS (for example). Enter this information: ✔ Identity: User ID ✔ Password ✔ root certificate (not required for every method) ✔ client certificate (not required for every method) Select the Save softkey VLAN Settings Select the menu option VLAN Settings . Select VLAN Discovery mode . - 26 -...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description ■ Cisco Discovery Protocol ( CDP ) is a Cisco proprietary Data Link Layer protocol ■ Link Layer Discovery Protocol ( LLDP ) is a standard, layer two discovery protocol Select the mode you require and then select OK . If you select Manual configuration , this screen opens: Select VLAN ID . Select VLAN Priority . - 27 -...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description Region Select the menu option Region preference . preference This option allows you to define the country in which the phone is located. The setting determines which regional tone the phone will use. Call Progress Tones (CPTs) are country-specific; the behavior and parameters of analog telephones lines vary from country to country. Select Regional Tone Settings and select the country in which the phone is located. Debugging Allows the Admin user to perform debugging for troubleshooting purposes. Available after logging in as Admin. - 28 -...
CHAPTER 3 Starting up C435HD Users & Administrator's Manual Setting Description Log settings Remote Logging (see under Remote Logging (Syslog) on page 82 for more information) Diagnostic Data (see under Getting Diagnostics on page 83 for more information) Reset configuration Restart Teams app Company portal login Remote Debug Recording (for Media/DSP debugging) (see under Logging (Syslog) on page 82 for more information) Switch to Teams Compatible Factory data reset (the equivalent of restore to defaults; including logout and device reboot) ADB (Android Debug Bridge command-line tool used to debug the Teams app); the setting is disabled by default; leave it unchanged at the default unless there’s a real necessity to use it. Screen Capture. By default, this setting is enabled. If it's disabled, the phone won't allow its screens to be captured. Restoring the Phone to Default Settings Users can restore the device to factory default settings at any time. The feature can be used if a ...
CHAPTER 3 Starting up C435HD Users & Administrator's Manual ■ restore the phone’s settings to their defaults when the phone is not connected (see below) ➢ To perform a hard restore while the phone is up and running: Long-press the HOLD key on the phone (more than 15 seconds); the screen shown below is displayed and the device performs a restore to default factory settings. After the restore, the phone automatically reboots and goes through the Wizard and sign- in process. Select OK ; the sign-in screen is displayed (see Signing In on page 33 for more information). ➢ To restore the phone’s settings to their defaults when the phone is not connected: Press the OK + MENU keys simultaneously and keeping them pressed, unplug the power ...
CHAPTER 3 Starting up C435HD Users & Administrator's Manual Recovery Mode If a phone goes into recovery mode, you can boot it using its hard keys as shown in ...
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CHAPTER 3 Starting up C435HD Users & Administrator's Manual Optionally reconfigure the 'Timeout' if it's too short (or too long). Optionally redefine the PIN. - 32 -...
CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Teams Application The following describes functions related to the phone’s Microsoft Teams application. Signing In Using TeamsIPPhonePolicy, network administrators can create the following users who can then sign in to the phone: ● UserSignin: All features are available, i.e., calls, meetings and voicemail ●...
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CHAPTER 4 Teams Application C435HD Users & Administrator's Manual ■ [Recommended] I f the DHCP server offers Timezone Options (100/101), the phone will set the obtained time zone and display the correct time on the screen; the time will be calculated based on an embedded Time Zone database, factoring in DST. ■ If the DHCP server offers Time Offset Option only (2), the phone will assign the obtained time offset to the first matched region in the list but there is a good chance it won’t reflect the actual geographical location, therefore the displayed time might be incorrect in some cases. For example, if the given time offset is GMT-5 and the phone is located in Mexico, the phone will get the time (and the DST setting) from central time and not from Mexico because in GMT-5 there is also Central Daylight Time. The network administrator must make sure the phone can access the following URLs (to check connectivity with the internet): https://www.google.com/generate_204 http://connectivitycheck.gstatic.com/generate_204 http://www.google.com/gen_204 If the internet connectivity check fails, a ‘No Internet Access’ warning pops up on the phone screen. Figure 4-1: Internet Connectivity Check - No Internet Access This can point to a problem that is preventing the phone from fully functioning in a Teams environment. The user can ignore the message if the Teams application is fully functioning, or can report a problem if the Teams application is not fully functioning.
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CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Open your browser and point it to https://microsoft.com/devicelogin as instructed in the preceding screen. Enter the code and then click Next . Click the account. - 35 -...
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CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Enter your password (it's the same password as the Windows password on your PC) and then click Sign in . Close the window shown in the preceding figure. Observe that the phone returns to the initial code screen. In that screen, select Sign in on this device . - 36 -...
CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Select the 'Email, phone or username' field; a virtual keyboard pops up. Enter one of them and then choose Sign in . The 'home' screen opens. ● If you opt to Sign in from another device , complete authentication from your PC or smart phone. This is recommended if you’re using Multi Factor Authentication (MFA). Figure 4-2: Sign-in from PC / Smart Phone In the browser on your PC or smart phone, enter the URL indicated in the ◆ preceding screen and then in the phone’s Web interface that opens, perform sign-in (as noted previously, this option is recommended if using MFA). LLDP-MED (Link Layer Discovery Protocol – Media Endpoint Discovery) is a standard...
CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Remote Provisioning and Sign-in from Teams Admin Center Network administrators can remotely provision and sign in to a Teams device. To provision a device remotely, the admin needs to upload the MAC IDs of the devices being p rovisioned and create a verification code. The entire process can be completed r emotely from the Teams admin center. ➢ Step 1: Add a device MAC address Provision the device by imprinting a MAC address on it.
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CHAPTER 4 Teams Application C435HD Users & Administrator's Manual From the Awaiting Activation tab, select Upload MAC IDs . Download the file template. Enter the MAC ID and location, and then save the file. Select the file, and then select Upload . ➢ Step 2: Generate a verification code You need to generate a verification code for the devices. The verification code is generated in bulk or at the device level and is valid for 24 hours. From the Awaiting Activation tab, select an existing MAC ID. A password is created for the MAC address and is shown in the Verification Code column. You'll need to provide the list of MAC IDs and verification codes to the field technicians. You can export the detail directly in a file and share the file with the technician who is doing the ...
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CHAPTER 4 Teams Application C435HD Users & Administrator's Manual The technician is then expected to enter the device-specific Verification code that was provided in the Teams admin center on the phone’s user interface. Once the device is provisioned successfully, the tenant name will be available on the sign in page. ➢ Step 4: Sign in remotely The provisioned device appears in the Awaiting sign in tab. Initiate the remote sign-in process by selecting the individual device. Select a device from the Awaiting sign in tab. Follow the instructions in Sign in a user , and then select Close .
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CHAPTER 4 Teams Application C435HD Users & Administrator's Manual When the tenant admin is signing in from Teams Admin Center, the user interface on the device is blocked to prevent other actions on the phone. - 41 -...
CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Getting Acquainted with the Phone Screen The following gets you acquainted with the phone’s user interface. The figure below shows the phone's home screen, aka the phone's idle screen. The following figure shows the phone's Calls screen. The following table describes the phone's home screen. - 42 -...
CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Table 4-1: Calls Screen Item Description Calls Select the tab to open the Calls screen. The screen shown in the figure preceding this table opens. People Select the tab to open the People, shown under Using the People Screen on page 47 opens. Allows you to easily connect and collaborate with teammates, colleagues, friends and family. Through this screen, you can see all your contacts and create and manage contact groups to organize your contacts. The screen provides a simple user experience and aligns with the contacts on the Teams desktop client. If a contact has multiple numbers, the phone screen allows the user to select from a drop-down menu the intended contact method. Calendar Select to open the Calendar screen, shown under Setting up a Meeting opens. Voicemail Select the tab to open the Voicemail screen, shown under Accessing Voicemail on page 48 opens. The following figure shows the user's presence status screen. Use this table as reference.
CHAPTER 4 Teams Application C435HD Users & Administrator's Manual ➢ To set presence status: In the home screen, select Select the status displayed; in the preceding figure, 'Available' is displayed. From the drop-down, select the status to set and then press the OK button. Configuring Teams Application Settings The following describes the Teams application's settings. In the home screen, select Use this table as reference: - 44 -...
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CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Table 4-3: Idle Screen Description Item Description Profile Opens the user's email address and photo / avatar picture. Calling Opens the Calls screen. Incoming Calls ■ Call forwarding. Enables automatically redirecting an incoming call to another destination. ■ Forward to. Only displayed if the previous setting is enabled.
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CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Item Description Configure a lock option before attempting to lock the phone. If a lock option isn't configured, the lock action won't work. To unlock a locked phone, see Unlock on page 31 . Report an issue Opens the Send Feedback screen. - 46 -...
CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Item Description About Opens the About screen. Sign out Lets you sign out of the phone application as one user and optionally sign in again as another user. See Signing Out on page 49 for detailed information. Device Settings Opens the [Device] Settings screen. See Configuring Device Settings on page 17 for detailed information. Using the People Screen The People screen allows users to easily connect and collaborate with teammates, colleagues, friends and family. Through the screen, users can see all their contacts and create and manage contact groups to organize their contacts. The screen provides a simple user experience and aligns with the contacts on the Teams desktop client. In addition to accessing the People screen from the menu, the screen can also be accessed from the hard CONTACTS button on the phone. - 47 -...
CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Accessing Voicemail From the phone's home screen, select the Voicemail tab. From the phone's home screen, select the voicemail icon and then select the message. - 48 -...
CHAPTER 4 Teams Application C435HD Users & Administrator's Manual Using Audio Devices Use one of the following audio devices on the phone for speaking and listening: ■ Handset : To make a call or answer a call, lift the handset off the cradle. ■ Speaker (hands-free mode) ● To activate it, press the speaker key during a call or when making a call. ● To deactivate it, press the speaker key again. ■ Headset (hands-free mode). When talking on the phone, you can relay audio to a connected headset. ● To enable it, press the headset key. ● To disable it, press it again. You can easily change audio device during a call. ■ To change from speaker/headset to handset : Activate speaker/headset and pick up the handset; the speaker/headset is automatically disabled.
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CHAPTER 4 Teams Application C435HD Users & Administrator's Manual After selecting the Sign out option, you're prompted 'Are you sure you want to sign out? Select OK ; you're signed out and returned to the Sign in screen. - 50 -...
CHAPTER 5 Performing Teams Call Operations C435HD Users & Administrator's Manual Performing Teams Call Operations The following documentation shows how to perform basic operations with the phone. Making a Call Calls can be made in multiple ways, for example, you can press the digit keys on the phone’s dial pad to enter the phone number. Alternatively, in the home screen you can press the s oftkey and in the RECENT screen that opens you can navigate to a recent call and then press the OK button. After dialing a destination number, the phone displays the Calling screen while playing a ring- back tone. - 51 -...
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CHAPTER 5 Performing Teams Call Operations C435HD Users & Administrator's Manual You can alternatively make a call using a speed dial from the People screen or from the ‘Search people’ feature in the People screen. - 52 -...
CHAPTER 5 Performing Teams Call Operations C435HD Users & Administrator's Manual Dialing a Missed Call The phone logs all missed calls. The screen in idle state displays the number of missed calls adjacent to the Calls softkey. ➢ To dial a missed call: ■ In the home screen, select the icon and then in the 'Recent' screen that opens navigate to and select the missed call. Select to Dial All phone numbers that are part of meeting invites or user contact cards can be d ialed out dir- ectly by selecting them via the phone screen. Making an Emergency Call The phone features an emergency call service. The idle lock screen displays an Emergency key.
CHAPTER 5 Performing Teams Call Operations C435HD Users & Administrator's Manual Answering Calls The phone indicates an incoming call by ringing and displaying Caller X is calling you . The LED located in the upper right corner of the phone flashes red, alerting you to the incoming call. ➢ To answer: ■ Pick up the handset -OR - activate the headset key on the phone (make sure the headset is connected to the phone) -OR- activate the speaker key on the phone -OR- select the Accept softkey (the speaker is automatically activated). Ending an Established Call You can end an established call in a few ways. ➢ To end an established call: ■...
CHAPTER 5 Performing Teams Call Operations C435HD Users & Administrator's Manual Transferring a Call to Work Voicemail Users can directly transfer a call into someone’s work voicemail without needing t o ring the far-end user. This allows them to discreetly leave voicemails for users w ithout interrupting them. Viewing and Playing Voicemail Messages If you hear a stutter dial tone when you pick up the handset, new messages are in your ...
CHAPTER 5 Performing Teams Call Operations C435HD Users & Administrator's Manual ■ Adjusting Handset Volume below ■ Adjusting Speaker Volume below ■ Adjusting Headset Volume on the next page For more information about sound and volume, see here Adjusting Ring Volume The volume of the phone's ring alerting you to an incoming call can be adjusted to suit personal preference. ➢ To adjust ring volume: When the phone is in idle state, select the VOL ...
CHAPTER 5 Performing Teams Call Operations C435HD Users & Administrator's Manual Select the VOL or VOL key; the volume bar is displayed on the screen. After adjusting the volume, the volume bar disappears from the screen. Adjusting Headset Volume Headset volume can be adjusted during a call to suit personal preference. ➢ To adjust the headset volume: During a call, activate the headset key on the phone. the volume bar is displayed on the screen. - 57 -...
■ Managing Phones with the Device Manager on page 70 Updating Phone Firmware Manually AudioCodes' Teams IP Phone Utility allows network administrators to manually update a phone's firmware. ➢ To manually update a phone's firmware: From the PC's Start menu, select the app icon or click the application's exe file in the folder ...
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CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual In the 'Teams IP-Phone Address' field, enter the IP address of the device (get it by pressing the MENU hard key > About phone > Status > IP Address ). Click SSH Connect ; a connection with the device is established. Under the Operations section of the screen next to the field 'Firmware file', click the Browse button and navigate to and select the candidate image file. Click the Submit button; a firmware upgrade process starts; the phone is automatically rebooted; a notification pops up when the process finishes. The phone notifies you that it's being updated and rebooted. - 59 -...
C435HD Users & Administrator's Manual The above is also displayed when the phone is upgraded remotely from Microsoft Admin Portal or from AudioCodes' Device Manager. Downloading 802.1x Certificates The following shows how to download user certificates to a single Teams device and to ...
CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual Click theBrowse button next to the field 'Certs Folder' under Multi Operations and then navigate to and select the certificate files to download. Click theBrowse button next to the field 'Phones IP List' under Multi Operations and then navigate to and select the txt file listing the IP addresses of the phones to which to download the certificates. The IP addresses are listed one under the other. Each occupies its own line. No notation between them is required. Click the now activated Download Certs button to add the certificates to the phones. After a short period, view in the results pane 'Certs Successfully Installed'. Manually Performing Recovery Operations Besides manual recovery options, the Android phones also feature an independent, automatic problem detection and recovery attempt capability that can culminate in recovery mode or in switching image slots.
CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual ■ Switch to the other slot - Long-press the reset key for 10 seconds or simultaneously press the ‘4’ key + the ‘6’ key; the device’s LED lights up green. ■ Enter the device’s boot - Long-press the reset key for 15 seconds or simultaneously press the ‘1’ key + the ‘3’ key; the device’s LED lights up blue. ■ Switch from Teams Compatible to Teams Native and vice versa - s imultaneously press the ‘back’ key + the OK key; the phone’s LED lights up red + green. ■ Restore the phone to its default settings - Long-press the reset key for 25 seconds or simultaneously press the OK key + the MENU key; the device’s LED lights up green + blue. You can also restore a device to its default settings while the phone is already powered up and functioning, by long-pressing the HOLD key for 15 seconds. Removing Devices from Intune Management You can remove from Intune devices that are no longer needed, that are being repurposed, or that have gone missing. ➢ To remove devices from Intune: Go to Microsoft 365 Admin Centre [portal.office.com] and log in with an Administration account.
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CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual The Endpoint Manager service is licensed according to individual terms. Consequently, not all network administrators will be able to navigate to it. Check if the license you're using includes the service or not.
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CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual Select: OS > Android (Device Administrator) Device Action > Delete and then Next . Select Devices to include and search for the user for which enrolled devices are to be removed. - 66 -...
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CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual Select all the devices to be removed and click Select icon . After the devices are selected, click Next . - 67 -...
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CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual Click Create ; a task to delete all the selected devices enrolled with a particular account is created. - 68 -...
CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual Once the action is created, the admin receives notification. It may take some time to completely sync the devices with the account so after delet- ing the devices wait for 30 minutes before signing in. Updating Microsoft Teams Devices Remotely For instructions on how to update Microsoft Teams devices remotely, see ...
CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual Managing Phones with the Device Manager AudioCodes' Device Manager manages Android-based Teams phones in a similar way to UC- type phones. Teams phones' configuration parameters are in the same format as UC phones. A .cfg configuration file is defined for each device. Device Manager version 7.8.2000 a nd later (Pro and Express) supports Android-based Teams devices. Zero Touch Provisioning is supported in a non-tenant aware manner; each local DHCP Option 160 must be configured with a fully-specified URL pointing to dhcpoption160.cfg as shown here: Table 6-1: DHCP Option 160 URL This URL is displayed in the Device Manager page under Setup > DHCP options configuration . ...
CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual ● To change a device's configuration, see the Device Manager Administrator's Manual. Changing a device's configuration using the Device Manager is the same for Android-based Teams devices as for UC devices.
CHAPTER 6 Performing Administrator-Related Operations C435HD Users & Administrator's Manual Table 6-3: TimeZone And Daylight Savings Parameter Description date_time/- Defines the Timezone. Valid values are: timezone ■ +00:00 ■ +01:00 ■ +02:00 ■ Etc. date_time/time_ [Boolean parameter]. Configuring ENABLED adds one hour to the con- dst figured time. Valid values are: ■ ■ 0 For example, to configure Central European Summer Time (CEST) you can either configure: date_time/timezone= +01:00...
Teams IP Phone Utility AudioCodes' Teams IP phone is by default accessed via Secure Shell (SSH) cryptographic network protocol after the network administrator signs in. Network administrators need to know their username and password in order to sign in; admin and 1234 are the default ...
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CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual AudioCodes provides network administrators with the SSH-based T eams IP Phone Utility. The application gives network administrators the following debugging capabilities: ■ Capturing the Phone Screen on the next page ■ Running Tcpdump on page 79 ■ Getting Information about Phones on page 80 ■ Remote Logging (Syslog) on page 82 ■ Getting Diagnostics on page 83 ■ Getting a Bug Report on page 86 ■ Activating DSP Recording on page 87 ■ Deactivating DSP Recording on page 88 ■ Getting Information about Phones on page 80 ➢ To open the Teams IP Phone Utility: From the PC's Start menu, select the app icon or click the application's exe file in the folder ...
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual In the 'Teams IP-Phone Address' field, enter the IP address of the device (get it by pressing the MENU hard key > About phone > Status > IP Address ). Click SSH Connect ; a connection with the device is established. Next to the field 'PC folder', click the Browse button and navigate to and select the folder to which to send data to use for debugging. Capturing the Phone Screen AudioCodes' screen-capturing application Teams IPP GUI Tool allows network administrators to effectively collaborate and debug issues. ➢ To capture the phone screen: From your PC's Start menu, open the AudioCodes Teams IPP GUI Tool application. - 77 -...
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CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual In the 'Teams IP-Phone Address' field, enter the IP address of the device (get it by pressing the MENU hard key > About phone > Status > IP Address ). Click SSH Connect ; a connection with the device is established. - 78 -...
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Next to the field 'PC folder', click the Browse button and navigate to and select the folder to which to send the screen captures. Click the Screen Capture button; the phone's screen is captured and the screenshot is saved and sent to the folder. On your PC, navigate to the folder and retrieve the screenshot. Default filename: screencap.png . Rename it to a name related to the screen you captured. If you don't rename it, it will be overwritten the next time you take a screenshot. Running Tcpdump Tcpdump is a common packet analyzer that allows network administrators to display TCP/IP and other packets transmitted or received over the IP telephony network, for debugging purposes. ➢ To run Tcpdump: In the Teams IP Phone Utility (see ...
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual After a short period, view in the results pane a 'Finished' indication. Open the folder on the PC to which you commanded the application to send the information and locate and open the file 'net.pcap'. Alternatively, run Tcpdump without the Teams IP Phone Utility. ➢ To run tcpdump without the Teams IP Phone Utility: Access the phone via SSH and run the following commands: cd /storage/emulated/0/ mkdir recording cd recording/ tcpdump -w rtp.pcap After running TCPDump, reproduce the issue. Press Ctrl+C to stop TCPDump: curl -T /storage/emulated/0/recording/rtp.pcap tftp://host_ip/rtp.pcap Getting Information about Phones Network administrators can get information about phones using AudioCodes' SSH protocol ...
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CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual address, clicking SSH Connect and browsing to a folder on the PC to which to send the information). Alternatively: ● To get firmware information , in the 'Command' field enter the following and then click Send : getprop ro.build.id ● To get Bootloader information using SSH protocol, in the utility's 'Command' field enter the following and then click Send : getprop ro.bootloader ● To get DSP information using SSH protocol, in the utility's 'Command' field enter the following and then click Send : getprop ro.ac.dsp_version...
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual ● To get the Microsoft Admin version using SSH protocol, in the utility's 'Command' field enter the following and then click Send : getprop ro.agent.version Remote Logging (Syslog) Remote Logging via Syslog provides the same log level as Device Diagnostics (performed via the Microsoft Admin Center) with some additional information that may be relevant to device issues (not Teams application issues). Device Diagnostics via the Microsoft Admin Center are saved to the device sdcard and collected after the event. Remote Logging via Syslog is ...
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Configure the ‘Remote IP address’ and ‘Remote port’ and enable ‘Remote Logging’; the device starts sending logs to the Syslog server. Network administrators can also enable Syslog using Secure Shell (SSH) protocol. ➢ To enable Syslog using SSH protocol, type the following command at the shell prompt: setprop persist.ac.rl_address <syslog_server_ip>:<port>. ➢ To disable Syslog using SSH, type the following command at the shell prompt: setprop persist.ac.rl_address ""...
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CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Click Get Diagnostics . After a short period, view in the results pane a 'Finished' indication. Open the folder on the PC to which you commanded the application to send the information and locate and open the sub-folder 'logs'. Open the txt files to view the diagnostics. - 84 -...
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CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Network administrators who need to get diagnostics from the device can alternatively dump the logs to the phone’s Secure Digital (SD) Card and then later collect them using Secure Copy Protocol (SCP) based on Secure Shell (SSH) protocol. Whenever an issue occurs, the administrator can dump the logs into the SD Card.
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Wait until the screen shown in the preceding figure disappears; the phone creates all necessary logs and copies them to the its SD Card / Logs folder. Get the logs using SCP notation as follows: scp -r admin@host_IP:/sdcard/logs/ . ■ Following are the relevant logs (version and ID may be different to those shown here): ✔ dmesg.log ✔ dumpstate-TEAMS_1.3.16-undated.txt ✔ dumpstate_log-undated-2569.txt ✔ logcat.log Getting a Bug Report Getting a Bug Report is identical to Getting Diagnostics on page 83 with these exceptions: ■ A Bug Report can be on many phones; Diagnostics is on one ■ A Bug Report is in zip file format; Diagnostics are not ■ A Bug Report is formatted differently to Diagnostics ➢ To get a Bug Report: In the AudioCodes Teams IP Phone Utility (see ...
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Click Get Bugreport ; after a short period, view in the results pane a 'Finished' indication. Open the folder on the PC to which you commanded the application to send the information. Unzip the zipped files and open the txt files to view the report. Activating DSP Recording Network administrators can activate DSP recording using AudioCodes' SSH protocol based Teams IP Phone Utility. ➢ To activate DSP Recording: In the AudioCodes Teams IP Phone Utility (see Teams IP Phone Utility on page 75 for more information), enter the phone's IP address, click SSH Connect and browse to a folder on the PC to which to send the information. In the 'PC IP Address' field, enter the IP address of the PC on which the utility is installed and then c lick the Start DSP Record button. After a period of recording, click Stop DSP Record .
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual ➢ To activate DSP recording using SSH protocol without the Teams IP Phone Utility, type the following at the shell prompt: setprop ac.dr_voice_enable true setprop ac.dr_ipaddr <ip_address> setprop ac.dr_port 50000 DSP recording can be activated on the fly without requiring the network administrator to reset the phone.
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual The phone is by default accessed via Secure Shell (SSH) cryptographic network protocol after the network administrator signs in. Administrators need to know their username and password in order to sign in; admin and 1234 are the defaults. SSH access allows network administrators debugging capabilities such as: ■ Getting the Phone IP Address below ■...
➢ To collect logs: Reproduce the issue Access Microsoft Admin Center and under the Devices tab click the Diagnostics icon. Figure 7-1: Microsoft Teams Admin Center - Diagnostics Applies to all AudioCodes phones for Microsoft Teams even though a specific model is shown in the figures here. Click the Diagnostics icon - 90 -...
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CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Click Proceed ; the logs are uploaded to the server. Figure 7-2: Microsoft Teams Admin Center – Logs Upload to Server Click the History tab. - 91 -...
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Figure 7-3: History - Download Click Download to download the logs. Getting Company Portal Logs Company Portal logs can be helpful to network administrators when there are issues with signing in to Teams from the phone. Logs can be gotten using one of two methods: ■ via GUID/UUID (see Getting Logs using UUID on the next page ) ■ via the phone (see Getting Logs via the Phone below ) Getting Logs via the Phone ➢...
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Select Settings . Select the Copy Logs key. Company portal logs are copied to: sdcard/Android/data/com.microsoft.windowsintune.companyportal/files/ To pull the logs, use the ssh: scp -r admin@hosp_ ip:/sdcard/android/data/com.microsoft.windowsintune.companyportal/files/ Files are quite heavy so you may need to pull them one by one. Getting Logs using UUID Many different kinds of generators are available on the internet that enable you to generate a Universally Unique Identifier (UUID), a.k.a., GUID (Globally Unique Identifier), which can be used to get Company Portal logs. ➢ To get logs using a UUID generator: Use an online generator such as https://www.uuidgenerator.net/ ...
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CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Copy the UUID number. In the example shown in the preceding figure, click Copy adjacent to the UUID. Execute the command adb shell or ssh shell. ● To execute the command adb shell , see Getting Logs using UUID over ADB Shell below ● To execute the command ssh , see Getting Logs using UUID over SSH on the next page Getting Logs using UUID over ADB Shell To use this method of getting new logs, Android Debug Bridge (ADB), a command-line utility included with Google's Android SDK, must be installed on your PC.
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Send AudioCodes the UUID number. Getting Logs using UUID over SSH SSH (Secure Shell) cryptographic network protocol can also be used to secure getting Com- pany Portal logs via UUID. ➢ To execute the command ssh: After copying the UUID number as shown in Getting Logs using UUID on page 93 , execute the command ssh as shown in the following example: am broadcast -a com.microsoft.windowsintune.companyportal.intent.action.IPPHONE_ UPLOAD_LOGS --es SessionID <Generated GUID> -n com.microsoft.windowsintune.companyportal/.omadm.IPPhoneReceiver Replace <Generated UUID> with the number that you copied, for example: am broadcast -a com.microsoft.windowsintune.companyportal.intent.action.IPPHONE_...
CHAPTER 7 Troubleshooting C435HD Users & Administrator's Manual Configure the remote IP address and port. Enable ‘Voice record’. Start Wireshark on your PC to capture the Audio traffic. Collecting Media Logs (*.blog) from the Phone Network administrators can collect Media Logs (*.blog) from the phone. ➢ To collect Media Logs (*.blog) from the phone Access the phone via SSH. Set the phone to the screen to capture. Run the following command: scp -r admin@hosp_ ip:/sdcard/android/data/com.microsoft.skype.teams.ipphone/cache/ . - 96 -...
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Questions and answers
My headset mysteriously stopped working with the audiocode C435HD desktop phone
Any troubleshooting or ideas as to why this happened; headphones work with computer fine to listen to music and worked fine earlier this week with desktop phone
The AudioCodes C435HD headset may have stopped working with the desktop phone due to the phone entering hibernation mode after a period of inactivity. This can cause the device to become unavailable, affecting headset functionality and call queue performance. Check the phone or Microsoft Teams settings to disable or adjust power-saving features to prevent hibernation.
This answer is automatically generated
I want to correctly adjust the time displayed on the telephone.
To adjust the time on the AudioCodes C435HD telephone, configure the following settings:
1. Set the Time Zone:
- Use the parameter `date_time/timezone` and set it to the desired time zone (e.g., `+02:00` for UTC+2).
2. Enable or Disable Daylight Saving Time (DST):
- Use `date_time/time_dst`, setting it to `1` to enable DST or `0` to disable it.
3. Set the Time Format:
- Use `date_time/time_format`, setting it to `12` for a 12-hour format or `24` for a 24-hour format.
These settings can be applied through the phone’s configuration interface.
This answer is automatically generated
What headset will work with the audiocodes 435 hd
The AudioCodes C435HD IP Phone supports headsets through an RJ9 port and a USB-A port. It is compatible with USB headsets and RJ9-wired headsets. Additionally, it has an EHS (Electronic Hook Switch) RJ11 port, which may support wireless headsets with EHS compatibility.
This answer is automatically generated