Dave, perhaps this is some variation on CSCuv04949 or CSCtr50458. I'm not sure if you're using SRTP for the media, or just using SIP/TLS for the signaling with RTP media. In any case, if you look at the list of caveats in the CallManager 10.5(2)SU3a release notes - yes the CallManager release notes - you'll see a handful of TLS and SRTP related caveats resolved, especially in the ES train upon which the SU3a build is based. I am referring to the section entitled "Resolved Cisco Unity Connection Caveats in 10.5(2)ES55; base ES for 10.5(2)SU3"
You might wish to try pulling up the Mixer and/or CuCsMgr logs for a call while it's working and when it begins to fail and attempt to look for any errors yourself. But in any case, it sounds to me like a TAC case is in order and prepare to supply them the logs if possible. Regards, Dave On Fri, Jun 10, 2016 at 10:52 AM, Dave Wolgast <dwolg...@rochester.rr.com> wrote: > Unity Connection 10.5(2)su2 > CUCM 10.5(2)su2 > > We have a secure SIP integration set up between CUCM and UCxn, which > works...for awhile. > > After some number of hours/days, we stop getting rtp. The SIP setup > happens exactly as expected, and the devices think that a call is > happening, but the caller hears no audio...just dead air for the duration > of the call. We are preferring g.711u but allowing g.729. > > We temporary fix we have been using has been to remove the g.729 > advertisement from the port group, reset the port group, then replace the > g.729 advertisement and reset again. Reset itself doesn't seem to fix it, > though I am not sure that there is anything specific about changing codec > advertisement that is fixing it either. > > Regardless, after awhile, it stops working again. > > None of the publicly-visible defects seem to apply. Has anyone seen > anything like this? Any tips for further troubleshooting? > > I just wanted to check with the experts before opening a TAC case. > > Thanks! > Dave Wolgast > Livonia, NY > > _______________________________________________ > cisco-voip mailing list > cisco-voip@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-voip > >
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