cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1552
Views
0
Helpful
5
Replies
Highlighted
Beginner

Phone rings once and dropped

HI All

 

I am facing an issue. whenever we are tryimg to call from location A to location B, the phone rings just once and then dropped. After performimg some R&D, we found that the issue is happening with only one phone model type, all other phone model type working fine. So please tell me what could be the issue and how can we troubleshoot it.

 

 

 

5 REPLIES 5
Highlighted
Beginner

Hi Aakash,

 

What is the Call Manager and the affected Phone model version? Is the phone registered as SIP or SCCP? Need to isolate if this is a signalling problem or media negotiation is at stake.

 

Can you disable the 'G722 advertise' on either sides (phones) through the CM Admin - phone configuration page and test? Also, what is the codec settings between the 2 sites?

 

Collecting CCM traces would isolate if it is a signalling or media negotiation issue.

 

Hope this helps.

Thanks

Highlighted

HI Hitesh

 

The phone model we are facing issue with is IP Phones model 8941 and the call manager version we are using is of 9.x version.

Highlighted
Hall of Fame Cisco Employee

Does it drop when you answer??

CUCM?? CME?? version??

HTH

java

if this helps, please rate
Highlighted

No, as soon as the it rings, it drops after first ring

Highlighted
Enthusiast

Cisco IP phone-8941 connected to the same network as other ip phones ? in another way, did the effected ip phone device have the same subnet IPs  as other IP-phone devices ?

Content for Community-Ad