Phone Displays 'Extension Error' Message; No Audio - Avaya 3631 Administrator's Manual

– Log in with original extension, while unregistering extension from other
phone. User presses 'Retry' softkey, and enters/confirms original extension,
password. Then presses 'Yes' softkey when prompted to Unregister User.

Phone Displays 'Extension Error' Message

• Message indicates extension entered by user into 3631 phone is not recognized on
current call server
• Verify extension entered correctly
• Verify call server IP address is correct

No Audio

One or all parties on a call are experiencing no audio. Check the following:
• Ensure Mute button is off on all phones
• Communication Manager 'Station' form. All involved stations should have consistent
settings for „Direct IP-IP Audio Connections" and „IP Audio Hairpinning". If a
firewall prohibits direct end to end streams, then „Direct IP-IP Audio
Connections" must be set to „No". Use 'Status Station' command to check results.
• Communication Manager 'IP-Network-Map' form. Ensure all endpoint addresses are
assigned to appropriate IP network regions
• Communication Manager 'IP-Network-Region form. Ensure the UDP port fields
specify the UDP port range supported by the endpoint. Ensure that no conflicting
port filtering is active in a firewall or in the Access Point security settings. The
wireless zone may use several network regions. Nevertheless the same codec sets, or
different codec sets with a common subset and order of codecs must be used. Check
page 3 „inter network region connection management"and ensure the correct codec
set is being used if communicating between regions.
• Communication Manager 'IP-Codec-Set' form. Ensure the codecs are supported by
the endpoints in the call. The following codecs are supported by the 3631 phone:
o G.711
o G.726A-32K
o G.729A
o G.729AB
Ensure „frames per packet" is set to 2 or 3, because the 3631 only supports 20ms
packets and 30 ms packets.
3631 Wireless Telephone Administrator Guide 30