We have several sites connected via MPLS.
We have call Manager in the main site and the branches perform branch to branch calling via the MPLS link.
Each branch has a PRI for local (to the branch) calling.
The routers are configured for SRST if call manager is lost.
My understanding is that this command will ensure the router will use call manager to process calls rather than the local gateway:
"isdn bind-l3 ccm-manager", if the gateway can reach call manager.
When the branch is making a local call, out the branch PRI, does the local handset use Call Manager for this?
For example, the communication would be:
1. Handset picked up
2. local gateway passes to call manager
3. call manager tells phone to use local PRI