In a scenario of
Main Branch has Call Manager controlling Main Site and branch phone functions.
Branch sites have voice gateways connected to Main site via MPLS with IP Phones for branch users and configured with MGCP.
Each branch has a PRI for ouside local and LD calls.
The voice gateway, when configured with MGCP is a remote control mechanism for call manger to have control of all ports on the gateway, correct?
When configured this way, and the remote sites have their own PRI, is considered PRI Backhauling?
Do the remote branch phones register with Call Manger or the remote gateway ?
Does the remote gateway notify Call Manager that a phone is taken of hook, or the phone does it directly?
When a call comes in to a remote branch via the branch PRI, would the process be:
1. Call hits remote gateway
2. Remote gateway contacts Call Manager via MGCP.
What does MGCP do at this point?
3. Call data is carried via tcp port 2428 from Branch gateway to Call Manager.
4. Call Manager communicates vi skinny with remote phone.