I am working on a system where we have added the first 9971 SIP phone, the rest of the phones are 7900 series SCCP phones. They are registered to a CUCMBE 8.6 system. There is then an intercluster trunk that connects to a CUCM 8.6 system that has an H.323 gateway connected to it. We are routing calls accross the ICT trunk and out the H.323 gateway and when we do certain numbers we call we get outbound audio but no inbound audio. This behavior is only exibited with the 9971 phone. The other phones can call then numbers without issue. There are no firewalls between the sites. They are all connected via an MPLS network using VRF routing.
Yes both systems are running CUCM version 8.6, although they are at different patch levels.
The call that fails is from the 9971 phone to accross the ICT then out to the PSTN. The IP phone to IP phone calls work fine. When a 7900 phone makes the same calls accorss the ICT and out the PSTN then it works without issue.
Yes the 7900 and 9971 phones are in the same subnet.
So to update this issue. We bypassed the ICT and had the 9971 phone register with the CUCM cluster that has the H323 gateway we are trying to reach. Once we did that then the calls work perfectly fine. After we moved the phone back to the remote CUCMBE server the calls fail with one way audio. We have also tried enabling the Media Termination Point required option on the ICT trunk to no avail.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.