Why does my AudioCodes 400HD say 'Registration…' and I can't make calls?
If your AudioCodes IP Phone displays a 'Registration…' message and you cannot make or receive calls, it means that the line is not registered to the network. If your phone has multiple lines and an 'X' is displayed in the LCD for a line, this indicates that the line has not been successfully registered. Contact your system administrator for assistance.
What to do if AudioCodes IP Phone shows 'LAN Link Failure'?
If your AudioCodes IP Phone displays a 'LAN Link Failure' message, ensure the LAN cable is securely connected to the LAN port on the rear of the phone and that the other end is connected to the network switch. If it's not, contact your system administrator.
How to troubleshoot AudioCodes 400HD when it is off?
If your AudioCodes IP Phone is off (no LCD displays and LEDs), it might not be receiving power. First, check that the AC/DC power adapter is firmly attached to the DC input on the rear of the phone and plugged into a functional electrical outlet. If you're using Power over Ethernet (PoE), contact your system administrator to ensure the switch is supplying power to the phone.
How to fix AudioCodes 400HD headset with no audio?
If your headset has no audio on your AudioCodes IP Phone, verify that your headset is securely plugged into the headset port on the side of the phone. Also, check that the headset volume level is adjusted adequately.
What to do if AudioCodes IP Phone says 'PIN expired'?
If your AudioCodes IP Phone displays 'PIN expired', renew the PIN expiration policy in the Skype for Business server interface.
How to troubleshoot 'PIN internal error' on AudioCodes IP Phone?
To troubleshoot a 'PIN internal error' message on your AudioCodes IP Phone: * Test the PIN Authentication process on the Skype for Business server by running the emulate cmdlet in the server shell: Test-CsPhoneBootstrap -PhoneOrExt nnnn -PIN nnnn. * If the test result is 'fail', there's a configuration error on the Skype for Business server side, hence the PIN sign-in failure on the phone side.
Why does my AudioCodes IP Phone say 'Location look-up failed'?
If your AudioCodes IP Phone displays 'Location look-up failed. Please enter your address', make sure 'Location look up' is configured by the management shell in the Skype for Business server.
How to fix 'Duplicate IP' error on AudioCodes 400HD IP Phone?
If your AudioCodes IP Phone displays 'Duplicate IP', in the DHCP server, delete the duplicate IP address and request another.
How to resolve 'PIN not set' on AudioCodes 400HD IP Phone?
If your AudioCodes IP Phone displays 'PIN not set', make sure in the Skype for Business server interface that a PIN was configured for this user account. If it wasn't, create a PIN for the account.
What does 'PIN invalid phone info' mean on AudioCodes 400HD?
If your AudioCodes IP Phone displays 'PIN invalid phone info', make sure the correct information was entered in the phone screen and in the Skype for Business server interface, and that they tally. Also, verify in the Skype for Business server interface that the PIN is enabled and if it isn't, enable it.
General| Type | IP Phone |
|---|---|
| Audio Quality | HD Voice |
| Ethernet Ports | 2 |
| Display | Graphical LCD |
| Display Size | 2.8 inches |
| Connectivity | Ethernet |
| Power over Ethernet | Yes |
| Headset Port | Yes (3.5mm) |
| Supported Codecs | G.711, G.722, G.729, iLBC, Opus |
| Supported Protocols | SIP, RTP, RTCP, HTTP, HTTPS, TFTP, DNS, DHCP, TLS, SRTP |
Provides security recommendations for Android-based Teams devices.
Explains major Android-level security developments incorporated into AudioCodes devices.
Explains procedures for performing hard and soft restores to factory defaults.
Details the process of signing into the Microsoft Teams application on the phone.
Explains how network admins provision and sign in devices remotely.
Explains various methods for making calls, including dialing numbers and contacts.
Details how to make an emergency call from the locked or unlocked screen.
How to schedule and manage conference meetings from the phone.
Guides on configuring E911 emergency locations via the Teams Admin Center.
Steps for manually updating phone firmware using the Android Phone Utility.
Details on performing device recovery operations using key combinations.
Overview of the Android Phone Utility for debugging.
Using Tcpdump for packet analysis and network debugging.
Procedures for obtaining diagnostic logs from the device.
Downloading logs from the Microsoft Teams admin center.
Using rpcapd for analyzing and debugging Android traffic.
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