Evil_TTL> show | s


Category:Cisco Systems -> Voice

COR - Class of Restriction. COR is similar to ACL but is used for restricting voice calls in CUCME (Cisco Unified Communications Manager Express).

The following is a brief diagram of COR configuration on CUCME drawn for personal use and presented here as is.


After you enter the configurations shown into the router, it is important that you verify the network is operating correctly. These commands and respective output show you a successful implementation of the configurations in this document.

Certain show commands allow you to conduct the analysis of COR implementation:

show ephone-dn summary — Displays brief information about Cisco IP phone extensions (Ephone-dns)
show telephony-service ephone-dn — Displays information about extensions (Ephone-dns) in a CUCME system.
show telephony-service dial-peer — Displays dial-peer information for extensions in a CUCME system
show telephony-service all — Displays detailed configuration for phones, voice ports, and dial-peers in a CUCME system.
show dial-peer cor — Displays the list of corlist and the members in each list.

The main differences in terminology between CUCME and CUCM regarding call restrictions are the following:

  • The COR feature in the Cisco IOS Software feature is like a CUCM calling search space and partitions.
  • Cisco IOS Software bases its restriction via dial-peer matching. The CUCM does it based on digit analysis.
  • The dial-peer cor custom command is equivalent to creating CUCM partitions.
  • The dial-peer cor list command is equivalent to creating a CUCM calling search space with partitions in it.

Partitions and calling search spaces provide the capability for implementing calling restrictions and creating closed dial groups on the same CUCM. There are resemblances between the COR operation and the CUCM calling search spaces and partitions feature. The one thing that COR cannot do is separate line and device calling search spaces and partitions like CUCM can.

By privilege15