No audio on IP Communicator call

Answered Question
Oct 2nd, 2009


We have Cisco Call Manager 4.1.3 SR7. Recently we have requirement to rollout IP communicator to home workers. I installed Cisco IP Communicator, Voice Enginer Version 2.4.2 on their PC.

The phone when first boot up connects to the auto registering call manager and get a number (58837). When I make a call to my extension, I can hear ring tone and when I answer the call, I cannot hear any audio.

I have added the name and ip address of the call manager into the lmhost files.

What else can I check?



I have this problem too.
0 votes
Correct Answer by KonradStepniewski about 7 years 2 months ago

Check any firewall between devices blocking RTP stream.

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Overall Rating: 5 (1 ratings)


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