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New Member

TIP: using softphone via DE30 gateway

This not a question more a tip for those who run into this, since I bounced my head on it for a while;

When you try to call external parties via your DE30+ gateway keep in mind it only supports G711 and G723 voice codec, I had my region set to G729 so only got one ring and the call was dropped...

Time to install my E1 card in the 3600.


Cisco Employee

Re: TIP: using softphone via DE30 gateway

Also note that if you have a requirement to use G.729 on the SoftPhone clients, you can utilize a transcoding resource to run G.729 to the SoftPhone and G.711 to the DE-30+ gateway.

But then again, if you have a transcoding resource such as the WS-X6608-E1, then you probably have a port available to use as an E1 and would not need the DE-30+ card.

Also you can use an IOS voice gateway to run G.729

New Member

Re: TIP: using softphone via DE30 gateway

Is this really the case? leads one to believe that DE-30+ can also do G.729. I haven't tested it, though, so I'm afraid I'll have to trust Aad more then CCO.

Cisco Employee

Re: TIP: using softphone via DE30 gateway

Yes, it's really the case. The DSPs are probably capable of running one of the G.729 codec variants, however this has never been implemented and I know of no plans to do so.

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