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No Dial Tone on CIPC registered to remote CUCM

I have a Cisco IP Communicator 7.0.6.0 on my laptop connected to a Netgate at my home. The Netgate connects via vpn to the CUCM 6.1 at remote site and it is registered as well. The problem i face is that there is No dial tone on my CIPC, but i am still able to dial the called party number and there is no RTP established either.  I get a busy tone instead of Dial tone. This has never happened before. I always used to connect this way and it used to work fine, but recently i changed the DN on my CIPC and this issue started.

Any Advice ?

3 REPLIES 3
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Rising star

Hi Lakshmi,

Is the phone actually registered to CUCM?  Are you running a firewall, ex. Windows Firewall?  Make sure you're allowing CIPC through the firewall.

HTH,

Chris

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Yes, the phone is registered to the CUCM and the windows firewall does allow CIPC through and it has worked earlier when i had registered to the same CUCM with a different DN.. 

Now- after i changed the DN this issue is occuring..

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CSS on the phone/line seem appropriate as well..