No Return Voice from Nortel to Cisco.

Unanswered Question
Apr 23rd, 2010

Dear All,

We have sucessfully configured a trunk between cisco CCM <-------> Nortel.

Call from CCM network is landing in nortel network even thy cant listen our voice...... call connection is sucessfully established but we cannot listen voice from nortel network to cisco.

How can we resolve this isue?? kindly help



I have this problem too.
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ranjit123 Sun, 04/25/2010 - 21:58


Do u mean to say the return traffic from nortel to cisco???

But all the SIP ports are opened and prerequisites have been checked.

Paolo Bevilacqua Mon, 04/26/2010 - 18:16

If it had been done properly, it would be working.

Recommend you engage a reputable consultant or certified cisco partner.

ranjit123 Mon, 04/26/2010 - 22:40


Can u pls recomment me any checks to be done on Nortel before i can proceed with the experts.




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