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Urgent help needed: No audio on SV9300 SIP trunk calls

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phadobas

Technical User
Jul 30, 2005
612
US
I have a new building opening tomorrow, and everything is in place, but I'm getting no audio on the SV9300 for incoming and outgoing calls via SIP trunks. Internal calls between stations are fine.
I've tried many different settings on CODEC-s and besides ONE successful call when I actually had 2-way audio, I get no audio ever since.
The one time I had audio, I wanted to connect to the system via PC Pro, I coudln't, so I had to reset it, and no audio ever since.
Wireshark shows that I can have G729 on the SIP trunks, but have G711 showing between the phone and the phone system.
But even if I force G711u on the SIP trunk and also G711u between the phone and the phone system, still no audio.

This is new install, using DT700 phones as terminals.
The system is behind a firewall and is being NAT-d, and for testing and debug purposes, currently nothing is blocked.

The brand new building is opening in about 11 hours! I've been on this for over 10 hours now.
Anybody can help?
 
Is the port forwarding set properly to the DSP address? Is SIP ALG turned off in the router? Do the number of VoIP licenses match the number assigned in 0B2XX? Who is the SIP trunk provider?
 
Usually this is a DSP problem but not having access to a manual I can't point you to the memory block. I think it may be in MB84.
 
0B201>10 = DSP allocation assignment. Check it against your licenses in F88.
 
Thanks for the above. I personally lost remote access to the site, but a co-worker is arriving there soon.
The ALG SIP is something we didn't think with and sounds a promising area to check, as well as the DSP allocation...
 
So we have 10 SIP trunks licensed and programmed but we have 64 PAD ports licensed. Would this be a problem?

We have audio on some calls now.
 
Outgoing calls got solved just on time. With various config changes we got to a point where 2 out of 10 calls had 2-way audio. At that point we went ahead and tried a different SIP provider, and beumm! 100%.
I don't know what was the problem with the first carrier and we probably will never find out. We use that carrier at other sites with no issues.
 
OOPS, Sorry, learning the 9100 programming ATM so just assumed! major mistake!
 
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