it may seems that it is very basic questions but since it's the first time i'm dealing with this stuff:
if i have let's say E1 (30) telephone lines from telco terminated on 2821 mgcp gateway, with ccm environment, now how the incoming calls to local phones would be handled, i mean if someone calls from outside to whom specifically this call would be routed?
what governs this routing to internal phones?
the route patterns are built just only for external calls originated from internal phones? right?
what if want to restrict this phone number (specific one channel among these 30 channels) to go specifically to that local phone extension? is this the DID functionality and is this how it is configured on ccm?
please ur help in clarifying these points