I have CME 3.4 running a full SIP environment. The 7940 phones register to my 2621XM via SIP on the LAN no problem. My problem starts when I want to use G729 on the SIP trunk over the WAN my VOIP provider. It appears that for some reason CME 3.4 won't transcode between G711 used on the LAN and G729 used on the WAN. According to the sip debug it appears the CME box send a cancel for no apparent reason after it gets a 183 Session in progress from the VOIP. Any help would be appreciated.
Cisco's IP-to-IP Gateway can do transcoding between G.711ulaw/alaw and various flavors of G.729r8. It uses the Skinny Server when invoking the transcoding services. Transcoding could be invoked for any call whether it originates from CCM or a voice gateway.
Even though transcoding resources is done locally on ipipgw, the transcoding resources have to be registered to a SCCP server
(Either CCM or CME).
Here is a sample config
The only way presently for the IPIPGW to be able to handle transcoding is that it needs to communicate via SCCP to a SCCP server. You can do this on the gateway by configuring the following configuration. This will configure the necessary transcoding and SCCP server.
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.