Hello, I have an issue with a CUBE which is connecting our PBX to the PSTN via a sip trunk, specifically when the call is put through a UCCX script we are finding that at each stage of the call, from the Initial answering, placing on hold, resume from hold to play second hold message, placing back on hold after this message, there are re-invite messages being sent to the ITSP. They do not expect to see this and it is causing them us to drop the calls, they have commented that they beleive that this is due to the conversation being what they would expect to see between our PBX (CUCM 8.5) and the CUBE not between the Cube and the ITSP. I have noticed that the newer version of IOS has a feature to block re-invite messages mid call which would appear to be able to fix the issue however I cannot imagine that this would of been required as otherwise users with UCCX would of been experiencing major issues with SIP trunks over the last few years when I have supported customers and not known any such issue. My question is this, is there some mis configuration that is causing the CUBE to relay the various stages of the call to the ITSP when it should only be stopping at the CUBE itself and only passing on signalling when the call is being cleared to the ITSP? Thanks, Matt Smith.
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HI All, I have an issue that has be scratching my head, I have been looking into an issue whereby some users are able to change their greeting on their voicemailbox in unity express other are not able to do so they record their new greeting and press 1 to save at which point they get a AA message stating the that the service is not available at this time please try again later? Could anyone advise as to the potential cause of this issue? if not what troubleshooting steps I can complete to diagnose it?
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