7936 Phone Issue

Unanswered Question
Feb 27th, 2009

We have 7936 conf phone, randomly reboots in mid of conference. It will keep rebooting and stuck to configuring IP. Then we need to unplug the power cord and reconnect to get it register with the Callmanager. We did not configure Voice VLAN for this phone and see the switch configuration below.

interface GigabitEthernet0/30

switchport access vlan 20

no logging event link-status

speed auto 10 100

no snmp trap link-status

spanning-tree portfast


Can some one help me?


I have this problem too.
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david-lima Fri, 02/27/2009 - 14:40

Hi Ravi, If you have checked network connectivity and no hardware issues (patch cord, power cube), try deleting the phone record from the CCM administration page and re-create it. By the way, what CCM verion do you have, maybe an option could be a firmware upgrade of your phone.

Hope this help


rhegde Mon, 03/02/2009 - 06:21

Network connectivity is fine.. We have CM 4.1.3. We are running cmterm_7936.3-3-15-0. This is an intermittent problem. Some times happen in mid of conference..

rhegde Mon, 03/02/2009 - 06:38

This can be potential issue.. I will have Cisco TAC look in to it get the firmware recommendations..


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