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AudioCodes C450HD User Manual
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AudioCodes C450HD User Manual

AudioCodes C450HD User Manual

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C450HD IP Phone User's Manual Ver 3.5.1
User's Manual
AudioCodes High-Definition IP Phones Series
IP Phone – Generic SIP
For C450HD IP Phone
Version 3.5.1

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Summary of Contents for AudioCodes C450HD

  • Page 1 C450HD IP Phone User's Manual Ver 3.5.1 User's Manual AudioCodes High-Definition IP Phones Series IP Phone – Generic SIP For C450HD IP Phone Version 3.5.1...
  • Page 3 Notice ..........................vi Security Vulnerabilities ........................vi WEEE EU Directive ......................... vi Customer Support ......................... vi Stay in the Loop with AudioCodes ....................vi Abbreviations and Terminology ..................... vi Related Documentation ........................ vii Document Revision Record ......................vii Documentation Feedback ......................vii Introduction .........................2...
  • Page 4 Contents C450HD IP Phone User's Manual 4.2.1 Dialing ..........................22 4.2.2 Redialing .......................... 23 4.2.3 Dialing a Missed Call ......................23 Answering Calls........................24 Rejecting Incoming Calls ..................... 25 Silencing Incoming Calls ...................... 25 Making a New Call Even Though a Call is Coming in ............25 Ending an Established Call ....................
  • Page 5 Contents C450HD IP Phone User's Manual 6.8.1 Making Sure the NTP Server is Enabled ................50 Configuring Screen Brightness .................... 52 6.10 Configuring a Default Audio Device ..................53 6.11 Adjusting Volume ....................... 54 6.11.1 Adjusting Ring Volume ..................... 54 6.11.2 Volume Mixer Control of multiple streams ...............
  • Page 6 Contents C450HD IP Phone User's Manual 7.10.3 Merging Calls........................81 7.10.4 Leaving a 3-Way Conference You Set up without Disconnecting the Others ..... 81 7.11 Activating Do Not Disturb ....................83 7.12 Retrieving Voice Mail Messages ..................84 7.13 Parking a Call ........................85 7.14 Configuring Group Call Pickup (GCP) ..................
  • Page 7 Contents C450HD IP Phone User's Manual A.3.8 Setting up a Remote Conference ..................102 - v -...
  • Page 8 Customer Support 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 https://www.audiocodes.com/services-support/maintenance-and-support.
  • Page 9 This document has been updated to be compatible with IP phone 3.5.1. Documentation Feedback AudioCodes continually strives to produce high quality documentation. If you have any comments (suggestions or errors) regarding this document, please fill out the Documentation Feedback form on our website at https://online.audiocodes.com/documentation-feedback.
  • Page 10 ◼ Server for streamlined monitoring, upgrading, and configuration. As part of AudioCodes’ Managed IP Phones solution, the C450HD can be integrated as an IT- managed device, enabling comprehensive lifecycle management for end-user desktop equipment. Please read this User Manual carefully to familiarize yourself with the phone’s operation and its extensive feature set.
  • Page 11 AudioCodes’ IP phone management utilities for managing end- user desktop devices. Seamless Deployment – Easily integrates with other AudioCodes 400HD IP phones as part of ◼ a fully managed VoIP solution, with comprehensive lifecycle management via AudioCodes’ IP phone management utilities.
  • Page 12 2. Setting up the Phone C450HD IP Phone User's Manual Setting up the Phone Unpacking When unpacking, ensure that the following items are present and undamaged: IP Phone Stand Cat 5e Ethernet Cable AC Power Adapter (Optional) If anything appears to be missing or broken, contact the distributor from whom you purchased the phone for assistance.
  • Page 13 2. Setting up the Phone C450HD IP Phone User's Manual Device Description Use the graphics below to identify and familiarize yourself with the device’s hardware functions. 2.2.1 Front View The front view of the phone is illustrated in the figure below and explained in detail in the accompanying table.
  • Page 14 2. Setting up the Phone C450HD IP Phone User's Manual Table 1: Font View Description Item # Label/Name Description TFT touch screen Thin Film Transistor touch screen, a type of LCD (Liquid Crystal Display) interactive screen which displays calling information and lets you configure phone features by touching the glass.
  • Page 15 2. Setting up the Phone C450HD IP Phone User's Manual 2.2.2 Rear View The rear view of the phone is illustrated in the figure below and explained in detail in the accompanying table. Figure 2: Rear View Table 2: Rear View Description...
  • Page 16 2. Setting up the Phone C450HD IP Phone User's Manual Cabling To cable phone: Connect the short, straight end of the handset cord to the handset. Connect the longer straight end of the cord to the phone’s handset jack. (Optional) Connect a headset to the phone’s USB port.
  • Page 17 2.4.2 Mounting the Expansion Unit on a Desktop Only applies to C450HD phone users with the Expansion Unit option. A dedicated stand is supplied for the Expansion Unit. Its mounting mechanism is identical to the phone’s (see the previous section for more information).
  • Page 18 2. Setting up the Phone C450HD IP Phone User's Manual Attach it again as you did for a desktop mounting (see Section 2.4.1) only now make sure that it’s flatly aligned to lie flush against the wall, i.e., slide the inner rails of the phone stand onto the phone base’s inner notches.
  • Page 19 3. Getting Started C450HD IP Phone User's Manual Getting Started This section gets you started with the C450HD IP Phone. The phone features a touch screen, providing an intuitive, menu-driven user interface for configuring the device and viewing call information.
  • Page 20 3. Getting Started C450HD IP Phone User's Manual Softkeys The table below describes the softkeys displayed in the touch screen. Press a softkey to activate. Table 4: Softkey Descriptions Softkey Description Missed Displays missed calls. Forward Automatically forwards calls. Do not Disturb (see Section 7.11"Activating Do Not...
  • Page 21 3. Getting Started C450HD IP Phone User's Manual Navigating the Phone Menu The MENU hard key on the phone lets you configure settings and access information. Press it to view call logs, configure speed dials, customize phone settings, determine device status, perform administration and access ’Contacts’.
  • Page 22 3. Getting Started C450HD IP Phone User's Manual To access the menu and menu items: Press the Menu softkey in the phone screen. ◼ To navigate to menu items: After opening the menu, press the navigation control button’s lower rim -OR- press the menu ◼...
  • Page 23 3. Getting Started C450HD IP Phone User's Manual A popup for special characters facilitates an improved user experience: - 15 -...
  • Page 24 3. Getting Started C450HD IP Phone User's Manual 3.4.1 Changing Case The keyboard allows you to enter upper case letters, lower case letters, combinations of these, numbers and symbols. To change: ◼ Open the Personal Directory (press the Contacts softkey or CONTACTS button on the phone), for example, and then press +New Contact.
  • Page 25 3. Getting Started C450HD IP Phone User's Manual Inputting Data Using Multi-Tap Each number key from 2-9 corresponded to three or four letters. To type a specific letter, you must press the numbered key multiple times. For example, to type "c," you press the "2" key three times.
  • Page 26 3. Getting Started C450HD IP Phone User's Manual 3.5.1 Switching between Letters and Numbers The keypad allows you to enter upper case letters, lower case letters and numbers, and to switch from one mode to another. To enter a contact’s name (for example): In the Add Contact screen, press the # key on the keypad.
  • Page 27 3. Getting Started C450HD IP Phone User's Manual 3.5.2 Switching to Symbols The keypad allows you to switch to symbols and to revert from symbols mode to letters or numbers mode. To enter a symbol (e.g., dot or @ or hyphen): Press the # key repeatedly until abc appears.
  • Page 28 4. Performing Basic Phone Operations C450HD IP Phone User's Manual Performing Basic Phone Operations This section describes basic phone operations: Using Audio Devices You can use any of the following audio devices on the phone for speaking and listening: ◼...
  • Page 29 4. Performing Basic Phone Operations C450HD IP Phone User's Manual Managing Calls The screen that is displayed after dialing provides the following information: The name of the calling (in the figure below it is Adele Vance) ◼ ◼ The number (or name) of the calling party...
  • Page 30 4. Performing Basic Phone Operations C450HD IP Phone User's Manual 4.2.1 Dialing This section describes dialing options: To dial a regular-digits phone number: On the keypad, key the digit of a regular phone number; the touch screen displays the digits in the New Call field.
  • Page 31 4. Performing Basic Phone Operations C450HD IP Phone User's Manual Press the Dial softkey to call the URL. 4.2.2 Redialing You can redial a number you previously dialed. To redial: Press the REDIAL hard key on the phone; the Dialed Calls screen is displayed, listing in...
  • Page 32 4. Performing Basic Phone Operations C450HD IP Phone User's Manual Answering Calls The phone indicates an incoming call as follows: ◼ The screen displays the incoming call icon together with the caller’s phone number (or contact name if listed in the phone directory): Phone rings.
  • Page 33 4. Performing Basic Phone Operations C450HD IP Phone User's Manual Rejecting Incoming Calls An incoming call can be rejected if for example you are busy or unavailable to take the call. The caller on the other side will hear a busy tone from your phone.
  • Page 34 4. Performing Basic Phone Operations C450HD IP Phone User's Manual Viewing the Call Log The phone logs calls that are missed, received and dialed. To view missed calls: Configure a Programmable Softkey with a ’Missed calls’ key event or select Menu > Call Log >...
  • Page 35 4. Performing Basic Phone Operations C450HD IP Phone User's Manual To view call history: Open the Call Log screen (MENU hard key > Call Log). In the Call Log screen, navigate to and select the call log you require. •...
  • Page 36 4. Performing Basic Phone Operations C450HD IP Phone User's Manual Using Multiple Lines Your phone supports up to 30 lines. Each is configured with its own extension number. The figure below displays the idle screen of a phone set up with two lines whose extensions are ’1002’ and ’1010’.
  • Page 37 4. Performing Basic Phone Operations C450HD IP Phone User's Manual 4.9.4 Making Multiple Line Calls Your phone supports multiple line calls. Calls can run simultaneously on each line. Example scenario: Line 1 calls A Line 2 calls B To make a multiple line call: When the screen is in idle state, navigate to and select the extension line.
  • Page 38 4. Performing Basic Phone Operations C450HD IP Phone User's Manual 4.9.6 Toggling Between Calls on the Same Line You can toggle between calls on the same line. How you toggle depends on whether the first-placed call is active or the second-placed call is active.
  • Page 39 4. Performing Basic Phone Operations C450HD IP Phone User's Manual 4.10.1 Receiving an Incoming Paging Call Any other user configured in your group can page you. To receive a paging call from another user configured in your group: View in your phone’s screen which group the paging call is coming from and listen to the ◼...
  • Page 40 4. Performing Basic Phone Operations C450HD IP Phone User's Manual 4.10.1.2 If Paged when in a Regular Call and Barge-in is Enabled If you’re in a call when paged and the ’Barge-in’ feature was enabled by your network administrator, the paging call barges into the regular call which is put on hold.
  • Page 41 4. Performing Basic Phone Operations C450HD IP Phone User's Manual To enable the lock feature on the phone: Press the MENU key, press the Settings item and scroll to and select Device Security. In the Device Security screen, select Locking the Device, press Select, and then select Enabled.
  • Page 42 4. Performing Basic Phone Operations C450HD IP Phone User's Manual 4.11.1 Unlocking a Locked Phone If the locking feature is enabled, the phone automatically locks after a configured period of time, securing it against unwanted (mis)use. If left untouched for 10 minutes (default), it automatically locks and is inaccessible to anyone who doesn’t know its lock code.
  • Page 43 4. Performing Basic Phone Operations C450HD IP Phone User's Manual 4.11.2 Manually Changing the Lock Code The lock code can manually be changed as an extra security measure. To manually change the code: Press the MENU hard key on the phone, select Settings and then scroll down to select Device Security.
  • Page 44 C450HD IP Phone User's Manual Virtual Sidecar for Shared Lines Overview The C450HD IP Phone features a Virtual Sidecar, offering multiple Programmable Keys to enhance call management efficiency. This functionality allows users to navigate and manage multiple lines, active calls, and shared lines effectively.
  • Page 45 5. Virtual Sidecar for Shared Lines C450HD IP Phone User's Manual Navigating the Virtual Sidecar Using up and down arrow keys allows you to scroll through up to 8 virtual keys. Pressing the Programmable Key on the right will activate the virtual key. The Programmable Keys tabs can display lines, speed dialing, call park, etc.
  • Page 46 Functional Key to flash green. To view active calls: Press the Call List Tab. Select a call by pressing the Functional Key of the call to bring any call to the main screen. Figure 13: C450HD: Virtual Sidecar with incoming call - 38 -...
  • Page 47 5. Virtual Sidecar for Shared Lines C450HD IP Phone User's Manual 5.3.2 Managing Multiple Calls To select from multiple calls: Press the Right Hard Key to switch to the Call List Tab. Navigate through calls using Up/Down Arrow Keys. Pressing the Programmable Key brings the call to the main screen.
  • Page 48 5. Virtual Sidecar for Shared Lines C450HD IP Phone User's Manual 5.3.3 Shared Line Management Figure 15: Example of a Shared line tab To select a Shared Line: ◼ Press the Right Hard Key to select the shared line tab. Each shared line displays its own tab with active calls.
  • Page 49 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual Configuring and Customizing Your Phone See the Administrator’s Manual for information about configuring a line. Displayed Messages Messages indicating processes in progress, displayed in the screen, include: Table 5: Displayed Messages Indicating Processes In Progress...
  • Page 50 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual To connect to Wi-Fi: In the phone’s main menu, press the Networks icon -or- in the ’Settings’ menu, navigate to and select the Wi-Fi option. If an Ethernet cable does not connect the phone to a LAN port: Alternatively access Wi-Fi settings via the MENU hard key >...
  • Page 51 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual After configuring the Wi-Fi parameters, press the Connect softkey and wait about 20-30 seconds for the phone to connect to Wi-Fi and receive an IP address; the Wi-Fi icon is then...
  • Page 52 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual Selecting Ring Tone You can choose from a selection of ring tones to indicate incoming calls. To select a ring tone: Open the Ring Tone screen (MENU hard key > Settings > Ring Tone).
  • Page 53 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual Enabling Call Waiting You can enable or disable the call waiting feature. To enable or disable call waiting: Open the Call Waiting screen (MENU hard key > Settings > Call Waiting).
  • Page 54 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual Managing Simultaneous Incoming Calls If two calls simultaneously come in on a phone, or if a user is in a call and a third-party calls, the phone’s screen displays the situation in a graphically user-friendly way.
  • Page 55 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual Configuring Call Forwarding This feature enables you to automatically redirect an incoming call to another phone number, including a mobile phone number, if a user-defined condition is met, e.g., if the line is busy. All Call Forwarding options can be configured from the phone.
  • Page 56 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual You can also see the ’forwarding’ flag on this screen. You can configure forward ’Busy’ and ’No Reply’ at the same time. In the example below, incoming calls will be forwarded to 80073 when phone is busy, and if phone is in idle state, calls will be forwarded to 80074 after ringing for 12 seconds.
  • Page 57 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual - 49 -...
  • Page 58 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual Configuring Time and Date Settings This section shows how to make sure the NTP server is enabled, configure enabling / disabling obtaining time zone from the DHCP server, configure the time format and configure the date format.
  • Page 59 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual To enable/disable obtaining time zone from the DHCP server: Open the Date and Time screen (MENU hard key > Settings > Date and Time). In the Date and Time screen shown above, select Obtain Time Zone from DHCP.
  • Page 60 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual Configuring Screen Brightness The phone’s screen supports different brightness levels. You can choose the level that suits you best. To configure screen brightness: Open the LCD Brightness screen (MENU hard key > Settings > LCD Brightness).
  • Page 61 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.10 Configuring a Default Audio Device Users can configure a default audio device. This is the device that’s used when the user presses the Accept key to answer calls or when the user dials using speed dial.
  • Page 62 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.11 Adjusting Volume The phone allows you to adjust Ring volume ◼ ◼ Tone volume (e.g., dial tone) Handset volume ◼ Speaker volume ◼ ◼ Headset volume 6.11.1 Adjusting Ring Volume The volume of the phone’s ring alerting you to an incoming call can be adjusted to suit personal...
  • Page 63 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.11.3 Adjusting Tones Volume The phone’s tones, including dial tone, ring-back tone and all other call progress tones, can be adjusted to suit personal preference. To adjust tones volume: Off-hook the phone (using handset, speaker or headset).
  • Page 64 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.11.5 Adjusting Speaker Volume The volume of the speaker can be adjusted to suit personal preference. It can only be adjusted during a call. To adjust the speaker volume: During a call, press the speaker hard key on the phone.
  • Page 65 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.12 Managing your Personal Directory The phone supports the Personal directory. You can add, edit and delete contacts in the Personal directory. ◼ ◼ You can add a maximum of 1,000 contacts to your Personal directory. After adding a contact, you can call the contact directly from the directory.
  • Page 66 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual [Optionally] Navigate down and enter their SIP URI, e.g., mike.dubb@audiocodes.com. This option can be useful to you if you don’t know their phone number. Press the Sp. Dial softkey to assign a speed dial key if required.
  • Page 67 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.12.3 Deleting a Contact from the Personal Directory Contacts can be deleted from the Personal directory. This can be necessary if they leave the company, for example. To delete a contact: Open the Personal directory (press the CONTACTS hard key on the phone), navigate to the name of the contact to delete and then press the OK hard key on the phone.
  • Page 68 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.12.4 Searching for a Contact in the Personal Directory The search feature enables you to quickly and easily locate a contact in a directory. The feature increases user productivity, especially if you have a long list of contacts.
  • Page 69 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.13 Programmable Softkeys (PSKs) Located under your phone’s LCD are four configurable softkeys. The idle screen by default displays (from left to right) Contacts, Missed, DnD, and Forward softkeys.
  • Page 70 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.13.1 Customized UI Experience Only the network administrator can configure this feature. See the phone’s Administrator’s Manual for more information. Users and / or enterprise management can ask their network manager to customize the New Call screen, Ongoing call screen and/or Idle screen.
  • Page 71 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.14 Configuring a Function/Programmable Key as a Speed Dial Function Keys are available with expansion module. Speed dials are private. They’re for each user’s own personal use. They’re preserved even if you sign out, sign in as another user, sign out as that user, and then sign in again as your own user.
  • Page 72 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.14.1 Configuring a Programmable Key for Speed Dialing via Calling Line of Choice You can configure a Programmable Key for speed dialing to be initiated by a speed dial calling line of your choice.
  • Page 73 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.14.4 Configuring a Speed Dial Key in the Sidecar Fields You can configure up to 8 Speed Dials in the sidecar fields. To configure a Speed Dial key in a sidecar field: On the sidecar, long-press a button adjacent to a field.
  • Page 74 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.14.6 Deleting a Speed Dial To delete a Speed Dial: Long-press the speed dial Function/Programmable Key, and then press the button. Navigate to ’Empty’ and then press the Select softkey.
  • Page 75 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual To configure a programmable key as a Key Event: Long-press any of the eight Programmable Keys of the phone screen or press the Menu softkey and select the Keys item.
  • Page 76 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.16 Configuring a Function/Programmable Key for Paging Functional Keys are available with the expansion module. Any of the Function/Programmable Keys can be configured to page a group. The feature allows live announcements to be made (paged) from a phone to a group of phones, to notify a team (for example) that a meeting is about to commence.
  • Page 77 6. Configuring and Customizing Your Phone C450HD IP Phone User's Manual 6.17 Deleting a Function/Programmable Key A Function/Programmable Key can be deleted after you configure it if you no longer find it useful (for example). To delete a key event: In the phone’s idle screen, long press the Function/Programmable Key.
  • Page 78 7. Performing Advanced Operations C450HD IP Phone User's Manual Performing Advanced Operations This section describes how to perform advanced operations. Answering Waiting Calls You can accept a call on an extension on which there already is an active call. To answer a waiting call:...
  • Page 79 7. Performing Advanced Operations C450HD IP Phone User's Manual Placing Calls On Hold You can place a call on hold in order to answer an incoming call (see Section 7.1) or to make another call. The party put on hold will hear music played (Music on Hold (MOH)).
  • Page 80 7. Performing Advanced Operations C450HD IP Phone User's Manual Accessing Office 365 Exchange Services in Generic SIP Mode To sign-in to Office 365 exchange services via cloud: From the Accounts section, click the Add button to start the sign-in process.
  • Page 81 7. Performing Advanced Operations C450HD IP Phone User's Manual Once sign-in is complete in the browser, the UI will show "Signing In..." Select Menu > Settings > Accounts to confirm that your Office 365 account is now signed in. This is the...
  • Page 82 7. Performing Advanced Operations C450HD IP Phone User's Manual Enabling Auto Redial Support pending. If a called party is unavailable because, for example, they’re busy, the caller’s phone’s LCD prompts Extension Busy. Activate auto redial on busy? If the caller presses the Yes softkey to the prompt, the busy extension is automatically redialed every n seconds (configurable by the caller).
  • Page 83 7. Performing Advanced Operations C450HD IP Phone User's Manual To toggle between callers: Press the navigation control button’s upper or lower rim to navigate from one caller to ◼ another, or ◼ Press the caller’s name in the screen. - 75 -...
  • Page 84 7. Performing Advanced Operations C450HD IP Phone User's Manual Using a Speed Dial to Call a Contact To quickly place a call you can press the Function/Programmable Key that you configured for speed dialing. To configure a Function/Programmable Key for speed dialing, see Section 6.14 Configuring a...
  • Page 85 7. Performing Advanced Operations C450HD IP Phone User's Manual Accessing Speed Dials when in a Call You can access your speed dials when in a call to (for example): transfer the call to a third-party ◼ ◼ add a participant to a conference To access your speed dials when in a call: When in a call, press the BXfer softkey (for example);...
  • Page 86 7. Performing Advanced Operations C450HD IP Phone User's Manual 7.10 Transferring Calls You can transfer a call to another party using blind transfer (default) or consultative transfer. Transfer Description Method Blind Connects another party to a third-party before the third-party answers.
  • Page 87 7. Performing Advanced Operations C450HD IP Phone User's Manual Allen Gray’s phone (3018) rings. Your call with John Jones ends immediately, and he is transferred to Allen Gray. Performing a Consultative Transfer You can consult with a third party before transferring a second party to the third party.
  • Page 88 7. Performing Advanced Operations C450HD IP Phone User's Manual 7.10.2 Transferring a Call to a Remote Party on Hold This feature allows you to transfer a call to another person with whom a call has been established, by selecting the call from a list of calls. You can consult with any person with whom a call has been established, without needing to use the Consultation Transfer procedure.
  • Page 89 7. Performing Advanced Operations C450HD IP Phone User's Manual 7.10.3 Merging Calls During a call, you can add another participant and merge them into a conference call. Merging works similarly to adding a participant to a conference and can be done using the phone's softkey."...
  • Page 90 7. Performing Advanced Operations C450HD IP Phone User's Manual To leave a conference you set up, without disconnecting the other parties: On-hook to end the call or press the End softkey; you’re disconnected from the conference; ◼ the two remaining parties continue unaffected.
  • Page 91 7. Performing Advanced Operations C450HD IP Phone User's Manual 7.11 Activating Do Not Disturb The Do Not Disturb (DnD) feature stops the phone from ringing if anyone calls. If DnD is activated and someone calls: ◼ The caller hears a tone indicating that your phone is busy.
  • Page 92 7. Performing Advanced Operations C450HD IP Phone User's Manual To activate DnD on multiple line extensions: Make sure your phone is in idle state and that the idle screen is displayed, i.e., that you’re not in an active call or dialing a number.
  • Page 93 7. Performing Advanced Operations C450HD IP Phone User's Manual Enter the Voice Mail number (get it from your network administrator) and press the Save softkey. Press the Voice Mail key again; the phone dials your enterprise’s Voice Mail box; the phone establishes the call with the server.
  • Page 94 7. Performing Advanced Operations C450HD IP Phone User's Manual 7.14 Configuring Group Call Pickup (GCP) GCP capability lets an employee take a call coming in on a colleague’s phone, on their phone. If an employee in an open space hears a colleague’s phone ringing and knows that colleague is unavailable, instead of having the call go unanswered and routed to voicemail, the call can be redirected and answered by the available employee.
  • Page 95 7. Performing Advanced Operations C450HD IP Phone User's Manual To view conference information: ◼ In the Conference screen, press the Call Menu softkey and then select Conference Info. 7.17 Muting the Microphone During a call, you can mute the microphone of the handset, headset, or speaker so that the other party cannot hear you.
  • Page 96 7. Performing Advanced Operations C450HD IP Phone User's Manual 7.18 Screens Switcher Screen switcher lists all open screens and allows switching to one of them. Windows selection screen is initiated by a long press in the Menu Hard Key or Soft Key. It can also be initiated by pressing “X”...
  • Page 97 Supported in specific regions such as the USA, Canada, the European Union, ◼ Switzerland, South Africa and Israel, and requires a specific CPN with a ’BW’ suffix when ordering. For an updated list of supported regions, contact AudioCodes. To enable Bluetooth on the phone: Access the Bluetooth screen (Menu > Settings):...
  • Page 98 7. Performing Advanced Operations C450HD IP Phone User's Manual When the phone is connected via Bluetooth, its battery level is visually indicated adjacent to the ’Connected’ indication. Bluetooth connectivity is indicated on the upper bar by the Bluetooth icon. indicates Bluetooth is enabled, not paired.
  • Page 99 8. Troubleshooting and Support C450HD IP Phone User's Manual Troubleshooting and Support Read this section if a problem with a phone occurs. Contact your administrator if necessary. Table 7: Troubleshooting Symptom Problem Corrective Procedure Verify that the AC/DC power adapter is attached firmly to the DC ◼...
  • Page 100 8. Troubleshooting and Support C450HD IP Phone User's Manual Third-party Features Support pending. This appendix describes phone features that are only applicable to specific third parties. Ribbon Communications Genband SLA The following Kandy Business Solutions (KBS) softswitch solution features can be configured: Shared Line Appearance (SLA) ◼...
  • Page 101 8. Troubleshooting and Support C450HD IP Phone User's Manual BroadSoft A.2.1 Shared Call Appearance The SCA feature enables multiple phones to be associated in an SCA group so that calls can be made or received on any phone in the group.
  • Page 102 8. Troubleshooting and Support C450HD IP Phone User's Manual State Phone LED Behavior Other phones in the group Solid When a call comes in All phones Fast flashing green Active phone Solid green When a phone is busy (active) Other phones in the group...
  • Page 103 8. Troubleshooting and Support C450HD IP Phone User's Manual Figure 22: Phones in the SCA Group Ring, Alerting to an Incoming Call Phone 1 answers: Figure 23: Phone 1 after Answering the Incoming Call In the figure above: • Phone 1’s line key LED is illuminated steady green.
  • Page 104 8. Troubleshooting and Support C450HD IP Phone User's Manual Figure 24 below shows phone 2 after phone 1 answers. Figure 24: Phone 2 after Phone 1 Answers In the figure above: • Phone 2’s line key LED is illuminated steady red.
  • Page 105 8. Troubleshooting and Support C450HD IP Phone User's Manual A.2.2 Monitored Lines Based on BroadSoft’s BroadWorks BLF Service This section shows how to configure Monitored Lines based on the BroadWorks BLF service, typically used by executive assistants or front desk operators to monitor lines in the network.
  • Page 106 8. Troubleshooting and Support C450HD IP Phone User's Manual Contact Synchronization A.2.3.2 Contact directories are pulled directly from the BroadWorks server. Case-insensitive Abc name search is performed instantly. Supported directories are Group Directory, Enterprise Directory, Group Common, Enterprise Common and Personal Directory. The feature cannot coexist with contacts saved locally on the phone.
  • Page 107 8. Troubleshooting and Support C450HD IP Phone User's Manual A.2.8 Listening in Capability for Call Center Supervisors Call center supervisors can pick up an operator’s phone and listen in on the conversation that the operator is conducting on headphones with the customer, without the customer at the other end sensing that the supervisor is listening in (because the supervisor is in effect muted).
  • Page 108 8. Troubleshooting and Support C450HD IP Phone User's Manual Genesys’ Contact Centers This section shows how to use AudioCodes IP phones in Genesys contact centers. The section is intended mainly for agents / hotline operators. A.3.1 Using the BroadSoft ACD Genesys Contact Center phones support the BroadSoft ACD.
  • Page 109 8. Troubleshooting and Support C450HD IP Phone User's Manual A.3.2 Presence Management This section describes how to login to and logout from the Call Center SIP server and to update your presence status when the ACD (Automatic Call Distribution) feature is enabled.
  • Page 110 8. Troubleshooting and Support C450HD IP Phone User's Manual Select the Always option or scroll down and select the Busy or No Reply option. Enter the Number to Forward to, or scroll down and select Select from Directory in which you can choose a contact number to which to forward calls.
  • Page 111 Website: https://www.audiocodes.com ©2025 AudioCodes Ltd. All rights reserved. AudioCodes, AC, HD VoIP, HD VoIP Sounds Better, IPmedia, Mediant, MediaPack, What’s Inside Matters, OSN, SmartTAP, User Management Pack, VMAS, VoIPerfect, VoIPerfectHD, Your Gateway To VoIP, 3GX, AudioCodes One Voice, AudioCodes Meeting Insights, and AudioCodes Room Experience are trademarks or registered trademarks of AudioCodes Limited.