IP Office: B179 Sip Phones disconnect call while on mute after 5 minutes

Doc ID    SOLN248750
Version:    6.0
Status:    Published
Published date:    17 Feb 2021
Created Date:    17 Apr 2014
Author:   
ogorman
 

Details

Avaya B179 Sip Phones (total of 3 with same problem) disconnect call while on mute after 5 minutes
 

Problem Clarification

IP Office: B179 Conference Handset dropping while conference call is muted

Cause

B179 firmware was the cause

2.3.8 ands 2.3 9 also have the issue

Solution

As a workaround, get the B179 Firmware upgraded to 2.3.2 resolved issue. New versions now available which are recommended.

The B179 phone cannot be downgraded in the same way as upgrading it.

The firmware on the phone has to be reset to factory default and then upgraded to 2.3.2. 
See this link to factory default the phone firmware. Keep in mind it also erases the config.
 
So first reset to factory default
Then upgrade to 2.3.2 or higher

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