Akuvox IT83 Series Admin Manual

Akuvox IT83 Series Admin Manual

Indoor monitor admin guide
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IT83 Series Indoor Monitor Admin Guide

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Summary of Contents for Akuvox IT83 Series

  • Page 1 IT83 Series Indoor Monitor Admin Guide...
  • Page 2: About This Manual

    About This Manual Thank you for choosing Akuvox’s IT83 series indoor monitor. This manual is intended for end users, who need to use and configure the indoor monitor. This manual provides an introduction of all functions and features of the product. It is suitable for 83.31.2.3xx version.
  • Page 3 —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .
  • Page 4: Table Of Contents

    Content 1. Product Overview ................................... 1 1.1. Product Description ................................. 1 1.2. Connector Introduction ................................2 2. Daily Use ......................................3 2.1. Starting ....................................3 2.2. Making a Call ..................................5 2.2.1. Calling from Call List ..............................5 2.2.2. Calling from All Call ................................ 5 2.2.3.
  • Page 5 2.4.1. Checking the Monitor ..............................10 2.5. Message ....................................11 2.5.1. Text Message ................................11 2.5.2. Creating a Message ..............................12 2.5.3. Deleting a Message ..............................13 2.6. Arming ....................................14 2.6.1. Arming Mode ................................14 2.6.2. Disarm Code ................................15 2.6.3.
  • Page 6 3.3.1. System Code Modification ............................18 3.3.2. Setting Code Modification ............................19 3.3.3. Web Password Modification ............................19 3.4. Phone Configuration ................................20 3.4.1. Language ..................................20 3.4.2. Time ..................................... 20 3.4.3. Network ..................................22 3.4.3.1. Network Status ..............................22 3.4.3.2.
  • Page 7 3.4.5. Display Settings ................................27 3.4.6. Sound Settings ................................28 3.4.7. Door Bell Sound ................................28 3.4.8. DND ..................................... 29 3.4.9. Capture ..................................30 3.4.10. Logo ................................... 30 3.4.11. Key Set of IT83X Monitor ............................31 3.5. Local PhoneBook .................................. 32 3.5.1.
  • Page 8 3.6.5. SIP Server ................................... 39 3.6.6. Outbound Proxy Server ............................... 39 3.6.7. Transport Type ................................40 3.6.8. Auto answer ................................. 40 3.6.9. Assistance call ................................41 3.6.10. Multicast ..................................42 3.7. Security ....................................43 3.7.1. Monitor Settings ................................43 3.8. Access control ..................................45 3.8.1.
  • Page 9 4.1.2. Discovery setting ................................. 50 4.2. Intercom ....................................51 4.2.1. Call Forwarding ................................51 4.2.2. Intercom ..................................52 4.2.3. Subscribe ..................................52 4.2.4. Audio Codec ................................53 4.2.5. Video Codec ................................53 4.2.6. NAT ....................................54 4.2.7. User Agent ................................... 54 4.2.8.
  • Page 10 4.4. Security ....................................58 4.4.1. Arming Zone Setting ..............................58 4.4.2. Motion Detector ................................59 4.5. Upgrade ....................................60 4.5.1. Basic Upgrade ................................60 4.5.2. Autop ................................... 61 4.5.2.1. PNP Autop ................................61 4.5.2.2. DHCP Autop ............................... 62 4.5.2.3. Manual Autop ..............................62 4.5.2.4.
  • Page 11: Product Overview

    1. Product Overview 1.1. Product Description IT83X is an Android SIP-based with smooth touch-screenindoor monitor. It can be connected with Akuvox door phone for audio/video communication, unlocking and monitoring. Residents can communicate with visitors via audio/video call, and it supports to unlock the door remotely. It is more convenient and safer for residents to check the visitor’s identity through its video...
  • Page 12: Connector Introduction

    1.2. Connector Introduction Ethernet(POE):Ethernet (POE) connector which it can provide both power and network connection. RJ45 (PON): Share the network access from Ethernet (POE) port, and for PC and other equipments connection. 12V/GND: External power supply terminal if POE is not available. Figure 1.2-1 IT83X interface RS485A/B: RS485 terminal.
  • Page 13: Daily Use

    Discovery mode is default mode if you don’t choose any device mode. Discovery mode:It is a plug and play configuration mode. Akuvox devices will configure themselves automatically when users power on the devices and connect them to network. It is super time-saving mode and it will greatly bring users convenience by reducing Figure 2.1-2 Device mode selection...
  • Page 14 This mode do not need to be done any configurations previously by the administrator. Cloud mode: Akuvox Cloud is an all in one management system. Akuvox Cloud is the mobile service that allows audio, video, remote access control between smart phones and Akuvox intercoms. All configurations in the device will be issued automatically from cloud.
  • Page 15: Making A Call

    2.2. Making a Call There are 6 ways to establish VOIP callsby IT83X. 2.2.1. Calling from Call List In the home page, choose a number from Call List to make a call. z Scroll up or down the Call List to choose the contact that users want to call.
  • Page 16: Calling From Missed Call

    Tap All Call icon to call other indoor monitors which are set in the same multicast group. 2.2.3. Calling from Missed Call In the home page, missed call indicates how many calls that users missed (1 missed call for an example). Missed call could be treated as a brief call log.
  • Page 17: Calling From Device

    2.2.4. Calling from Device It will display the devices connected with IT83X on the contact interface. On the device, go to More - Contact. z Click Update to synchronous the contact automatically. z Choose a device which users want to call. z Choose Audio or Video mode to call out.
  • Page 18: Calling From Keypad

    Choose Audio or Video mode to call out. 2.2.6. Calling from Keypad On the device, go to More - Call to get access to keypad. z Click account icon above the keypad to switch accounts to make a call. z Input the SIP account /IP address to the keypad to call the corresponding devices or soft phone.
  • Page 19: During The Session

    z Tap Cancel to reject the incoming call. Press “+” or “-” of the volume on the right side to adjust the ring tone volume. 2.3.2. During the session z Tap Unlock to open the corresponding door (if the call is from outdoor unit).
  • Page 20: Checking The Monitor

    2.4.1. Checking the Monitor Choose the outdoor devices from the list. The real-time video from the door phone or IP camera will show in the screen z PressUnlock to open the door which is connected with door phone. z Press Captureto take a screen shotof current interface. z Press Cancel to exit the monitoring.
  • Page 21: Message

    2.5. Message Message indicates how many messages are unread(An unread message for an example). Or directly enter the message interface to manage. 2.5.1. Text Message z Tap Message on the main interface to view the unread Figure2.5 -1 Message message. z Tap the unread message to view the message in details.
  • Page 22: Creating A Message

    2.5.2. Creating a Message z Press New key to create a new message. z Enter the destination number manually orchoose the contact from the contact list or select the device quickly from the below list z Choose the frequentlyused message , such as “Hello,”...
  • Page 23: Deleting A Message

    2.5.3. Deleting a Message z Long press the message to select it. z Click Select All to select all message in the message lists. z Click Delete to delete the messages have been selected. z Click Cancel to cancel the operation. z Click Back icon to exit the message interface.
  • Page 24: Arming

    2.6. Arming Tap Arming to enter the Arming interface. Arming feature is not displayed by default. Users can ask administrator to enable it. Please refer to chapter 3.4.10. IT83X supports 4 modes, including Home mode, Night mode, Away mode and Disarmed mode. Figure2.6-1 Arming 2.6.1.
  • Page 25: Disarm Code

    there will be 90 seconds delay time to announce the notification. z TheStatus in the corresponding zone means whether the zone is available or not. z Press Save in the top right corner to save the modification. 2.6.2. Disarm Code Go toArming - Disarm Codeto enter the disarm code settings interface.
  • Page 26: Alarm Log

    2.6.3. Alarm Log Go to Arming - Alarm Log to enter the alarm log interface. Users can check the alarm log, including“location,”“zone,”“zone type” and “alarm time.” z Hold an alarm log and it will show up delete prompt. z Press Select All to delete all alarm log or select a part of Figure2.5.3-1Alarm log existed messages then click Delete Figure 2.6.3-1 Alarm log...
  • Page 27: Basic Features

    3. Basic Features 3.1. Accessing the System Settings 3.1.1. Advanced System Setting On the device, goto More-Settings-More (Default password is Figure3.1-1 System setting 123456) to accessadvancedsystem settings. The latter More interface have more advanced features’ settings. 3.2. Accessing the Website Setting 3.2.1.
  • Page 28: Accessing The Device Website

    3.2.2. Accessing the Device Website Type the device’s IP address on browser, and input default user name and password: admin/admin to access the web interface. Note: The recommended browser is Google Chrome. 3.3. Password Modification Figure3.2.2-2Login web 3.3.1. System Code Modification On the device, go to More - Settings - More - System Code.
  • Page 29: Setting Code Modification

    3.3.2. Setting Code Modification On the device, go to More - Settings - More - Setting Code. Setting code is used to enter “Setting interface,” and the original setting code is null. Administrator can edita new setting code to prevent someone from entering the setting interface, and then confirm the new one and click submit to save.
  • Page 30: Phone Configuration

    3.4. Phone Configuration 3.4.1. Language On the device, go to More - Settings - Language to choose a suitable phone screen display language, and it is English by default. In the website,go to Phone - Time/Lang to select a web language, and it is English by default.
  • Page 31 Date Format: To select different date format. NTP Server: To fill in the NTP server to get time automatically. On the web portal, go to Phone - Time/Lang. Time Zone: To select which time zone user is in. Primary Server: To fill in NTP server to get time automatically. Figure 3.4.2-1 Time setting Figure 3.4.2-2 NTP setting...
  • Page 32: Network

    3.4.3. Network 3.4.3.1. Network Status On the device, go to More - System Info - Network. Users could check the basic network status from this interface, including access mode, IP address parameters and so on. On the web portal, go to Status - Basic - Network Information to Figure3.4.3.1-1 Network info check network information.
  • Page 33: Network Settings

    3.4.3.2. Network Settings On the device, go to More - Settings - More - Network. DHCP: Tick the DHCP option to configure the network as DHCP mode, and then IT83X will obtain the IP address, and other network parameters automatically. Static IP: Fill in the parameters of LAN IP, subnet mask, gateway, pri DNS server and sec DNS server manually.
  • Page 34: Wifisetting (Optional)

    3.4.3.3. WIFISetting (optional) On the device, go to More - Settings - More - WiFi to enable the WIFI feature, choose the suitable AP (Access point), and thenenter the password to connect to it. 3.4.3.4. Local RTP On the web portal, go to Network - Advanced - Local RTP. Figure3.4.3.3-1 Wireless network Starting RTP Port:To determine the minimum port for RTP stream.
  • Page 35: Turning Bluetooth On /Off

    3.4.4.1. Turning Bluetooth On /Off In the device, go to the More - Settings -Bluetooth, click On to enable the bluetooth. 3.4.4.2. Changing Bluetooth Device Name The IT83A/W uses “rk312x” as Bluetooth device name by default. The device name will be visible to other devices when connecting them.
  • Page 36: Transfer By Bluetooth

    z Click PAIR in the prompt windows in both sides. z The Device will be connected successfully. 3.4.4.4. Transfer By bluetooth After connection, users can choose bluetooth to transfer and receive some files. And user can check the received file in the top right corner “Show received files”.
  • Page 37: Display Settings

    3.4.5. Display Settings On the device, go to More - Settings - Display. Brightness: To adjust the brightness which is 145 by default. The range is from 0 to 255. The bigger value means the brighter screen. Sleep: To configure the sleep delay which is 1 minute by default. If there is no any operation in 1 minute, it will turn to sleep screen.
  • Page 38: Sound Settings

    3.4.6. Sound Settings On the device, go to More - Settings - Sound. Ring Volume: To set ring volume for incoming calls. Talk Volume: To set talk volume during the call. Tone Volume: To set tone volume. Ring Tones: To set different ring tones for incoming call. Notification Sound: To set notification sound when receiving Figure 3.4.5-1 Sound setting message.
  • Page 39: Dnd

    3.4.8. DND The full name of DND is Do Not Disturb. It allows IT83X to ignore any incoming calls. z On the device home screen, tap the DND to able or disable DND function. On the web portal, go to Phone - Call feature - DND. DND: Enable or disable this function.
  • Page 40: Capture

    DND Off Code:The code is used to turn off DND on server’s side, if configured, IT83X will send a SIP message to server to turn off DND on server side if users press DND when DND is on. 3.4.9. Capture On the device, go to More - Settings - Call Feature.
  • Page 41: Key Set Of It83X Monitor

    3.4.11. Key Set of IT83X Monitor On the web portal, go to Phone - Key/Display. Users can customize the feature icon display, to choose which feature will be shown and where it will be displayed. Type: To select which function shall be displayed on the home page or more page.
  • Page 42: Local Phonebook

    SIP number or IP number. It is supported 3 numbers for each of the contact person. z Click CameraUrl to enter RTSP URL of outdoor unit. Note: The RTSP URL of Akuvox door phone is rtsp://device_ IP/live/ch00_0. z Tap Cancel to cancel the operation or press Confirm Figure 3.5.1-2 Adding a contact...
  • Page 43: Editing A Contact

    3.5.2. Editing a Contact On the device, go to More - Contacts - Local PhoneBook to enter contact interface, and select one existed contact. z Press Edit icon to modify the exited contact. z Press Delete icon to delete a existed contact. On the web portal PhoneBook - Local Book, users can also do some modification about contact.
  • Page 44: Contact Import/Export

    3.5.3. Contact Import/Export Import/Export: To import or export the contacts in bulk, please make sure the format is correct. Figure3.5.3-1 Import/Export contact 3.5.4. Black List On the device, go to More - Contact - LocalPhoneBook - Black List. z Click All Contacts to switch the local phone book from all contacts to black list or vice versa.
  • Page 45 z Tap Confirm to add contacts into black list. z Tap Cancel to cancel the operation. On the web portal, PhoneBook - Local Book - Contact - Blacklist. User can also do some configurations. Contact: To display black list or all contact. Search: To search the contact by entering number or name.
  • Page 46: Intercom Call

    3.6. Intercom Call Figure3.6.1-1 IP call switch 3.6.1. IP Direct Call Without sip server, users can also use IP address to call each other, but this way is only suitable in the LAN. On the web portal, go to Phone - Call Feature - Others - Direct IP to enable the direct IP function.
  • Page 47: Account Status

    3.6.3. Account Status On the device, go to More - System Info - Account. Users could check the basic SIP account status here, registered means it is ready for using. On the web portal, go to Status - Account information to check the basic information of SIP account.
  • Page 48: Sip Account

    3.6.4. SIP Account On the device, go to More - Settings - More - Account. Active: To activate SIP account. Label: To enter the label name of this account, which will show on the account status interface. Display Name: To enter the display name of this account, which will show on other devices when making calls.
  • Page 49: Sip Server

    3.6.5. SIP Server Enter the SIP account address which points to the sip server. Server IP: To enter SIP server’s IP address or URL. Port: The specified port number for the sip server. Registration Period: The registration will expire after registration period, and IT83X will re-register automatically within registration period.
  • Page 50: Transport Type

    Outbound Proxy Server: To configure the proxy server to receive all initiating request messages and route them to the designated SIP server. 3.6.7. Transport Type Figure3.6.7-1 Transport type On the web portal, go to Account - Basic to setup transport type. z UDP: UDP is an unreliable but very efficient transport layer protocol.
  • Page 51: Assistance Call

    Note: Auto answer is only available with SIP accounts. On the web portal, go to Phone - Call Feature to setup auto answer whitelist. It will auto answer the incoming calls when the caller is in white list. Device Location: To enter the device name /location. Figure3.6.8-2 Whitelist setting SIP/IP: To enter the SIP /IP number of the corresponding devices.
  • Page 52: Multicast

    Call Number:To setup 3 SOS numbers. Once users press SOS key on the home page (SOS display key shall be set on the web manually), IT83X will call out the number in order. Call Timeout: Setup the timeout for each number. Once users call out, if the other side will not answer within the timeout, IT83X will continue to call the next number.
  • Page 53: Security

    Multicast List: To fill in the parameters of multicast group. IT83X will establish multicast calls to other indoor monitors which are set in multicast group. Listen List: To fill in the parameters of listen group. IT83X will receive multicast calls if some indoor monitors call the listen group. Figure3.6.10-3 Multicast group Label: To show the label name on the calling interface if users establish all call.
  • Page 54 Doorphone ID/Device Name: To enter the ID number of doorphone, which could be set by users. RTSP Address/Destination URL: To set the RTSP URL for the door phone. The RTSP format of Akuvox door phone is rtsp://device IP/live/ch00_0. User Name: To enter the user name if required.
  • Page 55: Access Control

    3.8. Access control 3.8.1. Face ID On the device, go to More - Settings - More - Face ID to setup face ID to access to IT83X, which provides setting security. z To implement face ID feature on IT83X, the Screen Lock on display setting interface should be enabled first.
  • Page 56: Remote Relay

    Go to Phone-Relayto setup the DTMF code of local relay in website.Users can press the Unlock key during the call. Relay Delay: To set the delay time for local relay. Status: To enable or disable the softkey in talking page. Display Name: To modify the display name of unlock icons in Figure3.8.2-2 Relay display talking page.
  • Page 57: Reboot

    3.8.4. Reboot On the device, go to More - Settings - Reboot. z Click the Reboot icon to reboot the device. One the web portal Upgrade - Basic - Reboot, users can also reboot the device. Figure3.8.4-2 Web reboot 3.8.5. Reset On the device, go to More - Settings - More.
  • Page 58: Advanced Features

    On the web portal Upgrade - Basic, users can also store the device. Figure3.8.5-2 Web reboot 4. Advanced Features 4.1. Phone Configuration 4.1.1. Installing Custom APK Figure 4.1.1-1 Install APK Users could choose to display Custom APK (The 3rd party Android app) on the home/more page, which provides users easier access...
  • Page 59 On the web portal, go to Upgrade - Key/Display. Package Name: To fill in the package name of APK (For example: com.akuvox.mobile.smartplus). APP Class Name: To fill in the class name of APK (For example: com.akuvox.mobile.module.main.view.SplashActivity).
  • Page 60: Discovery Setting

    4.1.2. Discovery setting If Discovery mode is adopted, users don’t need to configure the devices by themselves. IT83X will scan automatically all types of the devices on the same discovery node. On the device, go to More - Settings - More to configure the discovery mode and location name.
  • Page 61: Intercom

    4.2. Intercom 4.2.1. Call Forwarding On the device, go to More - Settings - Call Feature. Account: To choose which account shall implement call forwarding feature. Always forward: All the incoming calls will be forwarded unconditionally to a specified number. Busy Forward: The incoming calls will be forwarded to a specified number when IT83X is busy.
  • Page 62: Intercom

    On/off Code: The code used to turn on/off forward feature on server’s side, if configured, IT83X will send a sip message to server to turn on/off forward feature on server side if users press forward when forward feature is off/on. On the web portal, go to Phone - Call Feature users can also setup it.
  • Page 63: Audio Codec

    MWI Subscribe: To enable or disable message waiting indicator function. MWI Subscribe Period: To setup the time of MWI function. Voice Mail Number: To fill in the voice mail number. 4.2.4. Audio Codec On the web portal, go to Account - Advanced. Audio Codecs: To configure the disabled codecs and enabled codecs by pressing the corresponding buttons.
  • Page 64: Nat

    Codec Resolution: To adjust the resolutions for different video codecs. Codec Bitrate: To adjust the bitrate for different video codecs. Codec Payload: To adjust the codec payload for video codec. 4.2.6. NAT On the web portal, go to Account - Advanced. UDP Keep Alive Message:To send UDP keep alive message Figure 4.2.6-1 NAT periodically to router to keep NAT port alive if enabled.
  • Page 65: Dtmf

    User Agent: To customize user agent field in the SIP message. If user agent is set to specific value, users could see the information from SIP message. If user agent is not set by default, users could see the company name, model number and firmware version from SIP message.
  • Page 66: Call Related

    Voice Encryption(SRTP): If enabled, all audio signal (It’s RTP streams indeed) will be encrypted for more security. 4.2.10. Call Related Max/Min Local Sip Port:To configure maximum /minimum local SIP port for designated account. PTime:Interval time between two consecutive RTP packets. Figure 4.2.10-1 Call related Prevent SIP Hacking:Enable to prevent SIP from hacking in the Internet.
  • Page 67: Session Time Out

    Allowed Access IP List: To configure the IP address of allowed host. 4.2.12. Session Time Out Session Time Out: To set the time out value, the ongoing call will Figure 4.2.12-1 Session time out be disconnected automatically if session time out. 4.3.
  • Page 68: Remote Relay By Http

    4.3.2. Remote Relay by HTTP On the web portal, go to Phone - Relay. Remote Relay By HTTP: To configure the parameters to trigger a Figure3.9-1 Remote relay by HTTP certain remote relay of door phone by sending http message, which also requires the configurations on door phone.
  • Page 69: Motion Detector

    Location: To select which location the detection device is in, including Bedroom, Guest room, Hall, Window, Balcony, Kitchen, Study and Bathroom. Type: To select which type of detection device is, including Infrared, Drmagnet, Smoke, Gas and Urgency.. Trigger Mode: To setup triggering mode for the sensor, including NO (normal open) and NC (normal closed).
  • Page 70: Upgrade

    receive the captured motion pictures from the door phone, which requires the configurations on door phone. 4.5. Upgrade 4.5.1. Basic Upgrade Figure 4.5.1-1 Basic upgrade On the web portal, go to Upgrade - Basic. Firmware Version: To display the firmware version at present. Hardware Version: To display the hardware version at present.
  • Page 71: Autop

    4.5.2. Autop Autop (Auto-Provisioning), this feature is used to configure or upgrade IT83X in batch via the support of third party servers. To use DHCP/PNP/TFTP/FTP/HTTP/HTTPS servers to get URL, and then download firmware and/or its corresponding configuration files from servers. These configuration files and firmware will be used to update firmware and the corresponding parameters on the phone.
  • Page 72: Dhcp Autop

    4.5.2.2. DHCP Autop DHCP Option:To use designated DHCP option to get auto provisioning server’s address via DHCP. 4.5.2.3. Manual Autop Figure 4.5.2.2-1 DHCP option Manual Autop:To display and configure manual update server’s settings. URL: To fill in the Auto provisioning server address. Figure 4.5.2.3-1 Manual autop User Name:To fill in the user name if server needs an username to access, otherwise left blank.
  • Page 73: Automatic Autop

    AES Key (MAC): Used for IP phone to decipher MAC-oriented auto provisioning configuration file(For example, file name could be 0C1105888888.cfg if IT83X’s MAC address is 0C1105888888). Notes:AES is one of many encryption, it should be configured only when configure file is ciphered with AES, otherwise left blank. 4.5.2.4.
  • Page 74: Logs

    4.6. Logs 4.6.1. Call log On the web portal, go to PhoneBook - Call Log. Users are able to view all /dialed /received /missed /forwarded calls. Call History: To select which kind of calls users want to view, including dialed, received, missed and forwarded. Export: To export the call log.
  • Page 75: Pcap

    Export Log:To export temporary system log file to local PC. Remote System Log: To enable/disable remote system Log. Remote System Server: To input the syslog server address. 4.6.3. PCAP On the web portal, go to Upgrade - Advanced - PCAP. PCAP is a network packet capture tool in IT83X itself, which provides an Figure 4.6.3-1 PCAP efficient method to troubleshoot network problems.
  • Page 76 Abbreviations ACS:Auto Configuration Server DNS-SRV:Service record in the Domain Name System Auto:Automatically FTP: File Transfer Protocol AEC:Configurable Acoustic and Line Echo Cancelers GND: Ground ACD:Automatic Call Distribution HTTP: Hypertext Transfer Protocol Autop:Automatical Provisioning HTTPS: Hypertext Transfer Protocol Secure AES:Advanced Encryption Standard IP: Internet Protocol BLF:Busy Lamp Field ID: Identification...
  • Page 77 SIP: Session Initiation Protocol PCAP: Packet Capture SNMP: Simple Network Management Protocol PNP: Plug and Play STUN: Session Traversal Utilities for NAT RFID: Radio Frequency Identification SNMP: Simple Mail Transfer Protocol RTP: Real-time Transport Protocol SDMC: SIP Devices Management Center RTSP: Real Time Streaming Protocol TR069: Technical Report069 MPEG: Moving Picture Experts Group...
  • Page 78 Contact us For more information about the product, please visit us atwww.akuvox.com or feel free to contact us by Sales email: sales@akuvox.com Technical support email: techsupport@akuvox.com Telephone: +86-592-2133061 ext.7694/8162 We highly appreciate your feedback about our products.

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