Calling Privileges
COR is a Cisco articulation aperture affection that enables Class of Service (COS), or calling privileges,
to be assigned. It is best frequently acclimated with Cisco Unified SRST and Cisco
Unified CME but can be activated to any punch peer.
The COR affection provides the adequacy to abjure assertive alarm attempts based on the
incoming and approachable CORs provisioned on the punch peers.
COR is acclimated to specify which admission dial-peer can use which approachable dial-peer to
make a call. Each dial-peer can be provisioned with an admission and an approachable corlist.
COR functionality provides the adequacy to abjure assertive alarm attempts on the base of
the admission and approachable CORs that are provisioned on the punch peers. This functionality
provides adaptability in arrangement design, allows users to block calls (for example, calls
to 900 numbers), and applies altered restrictions to alarm attempts from different
originators.
Figure 7-30 shows a avenue plan consisting of assorted PSTN punch peers, accessible for COR.
420 Authorized Self-Study Guide Cisco Articulation over IP (CVOICE)
dial-peer articulation 911 pots
destination-pattern 911
forward-digits all
port 0/0/0:23
dial-peer articulation 9911 pots
destination-pattern 9911
forward-digits 3
port 0/0/0:23
dial-peer articulation 9 pots
destination-pattern 9[2-9]......
port 0/0/0:23
dial-peer articulation 91 pots
destination-pattern 91[2-9]..[2-9]......
prefix 1
port 0/0/0:23
dial-peer articulation 9011 pots
destination-pattern 9011T
prefix 011
port 0/0/0:23
Emergency Calls (With and Without 9)
Local Calls (7-Digit Dialing)
Long-Distance Calls (11-Digit Dialing)
International Calls (Variable Length)
Figure 7-30 Calling Privileges
The 911 punch associate is acclimated for emergency calls to the PSTN. Notice the forward-digits all
command, which sends all akin digits (911 in this case) to the PSTN. Without this
command, the punch associate would be matched, but no digits would be beatific to the PSTN
because of the absence digit-strip command.
The 9911 punch associate is additionally acclimated for emergency calls, but this time it additionally includes the
PSTN admission cipher 9. Note that alone three digits are beatific to the PSTN application the forwarddigits
3 command, because the PSTN admission cipher 9 charge not be included in the call
setup.
The 9 punch associate is acclimated for PSTN bounded calls for seven-digit dialing in the United States.
The 91 punch associate is acclimated for PSTN civic or long-distance calls for 11-digit dialing in
the United States. Because the absolutely akin digits are 91, the civic identifier 1
needs to be prefixed. This is done application the prefix 1 command.
The 9011 punch associate is acclimated for PSTN capricious breadth all-embracing calls from the United
States. Because 9011 will be bare because of the digit-strip setting, the prefix 011
command is acclimated to prefix the actual all-embracing identifier to the alleged number.