Calling Privileges Using Cisco Routers
- Called Class Of Service (PBX), Class Of Control (CUCM), Class of Restriction (Voice Gateways)
- Required in depth understanding of inbound and outbound dial-peers
- Requires more detailed dial-peers (no 9T for PSTN)
- Can be confusing, but becomes quite fun!
Manually Creating a PSTN dial plan
7 Digit Dialing
10 Digit Dialing
11 Digit Dialing
- Restrictions implemented via COR lists
- Incoming dial-peer assigns incoming COR list
- Outgoing dial-peer assigns outgoing COR list
- If the outgoing COR list is a subset of the incoming COR, the call is forwarded
4 steps to setting up COR
First define COR bubbles under COR custom
dial-peer cor custom
Second, define outgoing COR lists
dial-peer cor emergency
dial-peer cor list local
dial-peer cor list longdis
dial-peer cor list international
Third, define incoming COR lists
dial-peer cor list LD
Fourth, assign COR to dial-peers..
Weird Rule: If a dial-peer/user/calling entity does not have an incoming COR list assigned, they can dial EVERYTHING.
I GET IT….