If Unity transfers a call to an extension in another cluster (via intercluster trunk) there is no ringback. The "please wait while your call is transferred" plays and callers don't seem to be bothered by the lack of ringback, but I would like to fix this. Transfers to MGCP gateways or SCCP phones are OK.
I spoke too soon. I did get ringback, unfortunately it totally broke the answer supervision, and the call never completes properly. The ringback continues, even after the called phone answers. Eventually some timeout is hit, and then it is dead air.
What did you do to finally solve your problem? I have a very similar problem. I found references on the forum about an IOS upgrade to 12.2(15).ZJ3, but this did not fix my problem. When the call is transfered from VM the call is disconnected after enabling H225 Ringback on CCM. If I disable ringback then the call goes thru, just without ringback.
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.