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Community Member

Unable to hear Audio in Cisco IP Phone

Hi,

I have CCM 7.0 (System version: 7.0.1.11000-2).

I have terminated PRI in the 2821 voice gateway & the GW is integrated with CCM.

ISDN is working fine...

The problem is: whenever i dial any number (mobile/landline) i can hear other party's voice, but he is unable to hear my voice.

Any help would be greatly appreciated....

1 ACCEPTED SOLUTION

Accepted Solutions

Re: Unable to hear Audio in Cisco IP Phone

Hi Partha,

You can download an excellent document created by Nick, might help you.

http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Unified%20Communications%20and%20Video&topic=IP%20Telephony&topicID=.ee6c829&fromOutline=&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.2cc2ca6c

Hope it helps, please rate if it does.

Best regards,

- Adrián.

4 REPLIES
Bronze

Re: Unable to hear Audio in Cisco IP Phone

Is the router IP and the IP of your phone on the same subnet? If not, it sounds like the subnet of your phone cannot route to the gateway, either because of a routing problem or access-list problem somewhere.

Please rate if this helped.

Community Member

Re: Unable to hear Audio in Cisco IP Phone

Hi,

They are on different vlan & the inter-vlan routing is perfect. IP Phones can reach to Voice gateway...any other idea..

Bronze

Re: Unable to hear Audio in Cisco IP Phone

Work through this document and see what you find:

http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a008009484b.shtml

Please rate if this helps.

Re: Unable to hear Audio in Cisco IP Phone

Hi Partha,

You can download an excellent document created by Nick, might help you.

http://forum.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Unified%20Communications%20and%20Video&topic=IP%20Telephony&topicID=.ee6c829&fromOutline=&CommCmd=MB%3Fcmd%3Ddisplay_location%26location%3D.2cc2ca6c

Hope it helps, please rate if it does.

Best regards,

- Adrián.

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