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Community Member

Audio Issue with SCCP VG224

I am having an issue with no audio when I call from a Cisco IP SCCP Phone registered to Call Manager to an analog phone registered to a SCCP VG 224. Howerver, calling the other way works fine. So, it seems to be an issue with the VG 224 receiving a SCCP call as we have tested a lot of other scenarios and they work fine. Anyone have any ideas?

Thanks,

Brent

2 REPLIES
Community Member

Re: Audio Issue with SCCP VG224

OK, we have another piece of info for this. If we wait for the analog phone to ring twice and then pick up, it works. So it seems to be something with the VG not being able to setup completely for the RTP to function correctly. We are running 12.4(15)T1. Any ideas?

Community Member

Re: Audio Issue with SCCP VG224

OK, it looks like it has to do with caller ID. If we disable caller id on the voice port on the VG 224, everything works fine. So, that looks to be the issue.

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