Information Technology Reference
In-Depth Information
Figure 6-18
Configuring Dial Peers Using CCP
Unlike the POTS dial peer configuration window in CCP, the VoIP dial peer configuration
does not have the wizard-based configuration items; it allows only the manual dial peer
creation.
Understanding and Implementing CME Class of
Restriction
If you implement what you've seen so far, you can create a powerful VoIP system that sup-
ports both internal (ephone) and external (dial peer) dialing. However, there might be
times when you want to prevent some users from calling certain numbers, such as the fol-
lowing examples:
Prevent standard employees from making international calls, but allow management
to place international calls without restriction
■
Block certain high-cost numbers (such as 1-900 numbers in the United States)
■
Prevent certain internal phones from reaching executive office directory numbers
■
This list goes on and on, but you get the idea: Sometimes, it's necessary to place calling re-
strictions on users of the VoIP network. If you were implementing this feature in the full
Cisco Unified Communications Manager (CUCM) platform, you would use a feature
called Partitions and Calling Search Spaces (CSS). In the CME environment, the equivalent
feature is called incoming and outgoing Class of Restriction (COR) lists.
