I am having an issue where want to use ilbc on the call leg from the PRI gateway to the ip phone.
When we dial ip phone to ip phone the call is set to use ilbc and we can see that the phone is successfully negotiating that codec and everything works fine.
When we dial the the DID, the call comes into the MGCP gateway but it seems that the phone and the gateway can not negotiate ilbc. We do have a transcoder on the gateway that is registered and in the MRGL of the gateway but we still can not use ilbc. We also have the regions set so that between the gateway and the ip phone ilbc will be the preferred codec.
A test that we conducted is that we called meeting place, which only supports 711 from our ip phone using ilbc and we can see that the transcoder does get used and there is no problems there. Its just when we want the call to come from the mgcp gateway to the iphone using ilbc that we run into this issue.
some of the main reasons to stay away from that codec for now. It has a great design, but being so new, it's not quite widely supported in all versions of cisco gear. I have customers who want to use the ilbc for the wan instead of g729 and I tend to shy away from it for now. We know 729 is tried and true. Until all the bugs are worked out of ilbc, Id stick to 729 and 711.
I know it does not help you, but sometimes the bleeding edge is too much
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.