• Apply only when we have both an incoming and outgoing COR list
• If there is only one, then all calls are allowed.
• Use in CCME and SRST

• Define tags for each type of call that you want to distinguish.
• Like creating partitions.

dial-peer cor custom
  name Emergency
  name VMail
  name Local
  name LD
  name Intl

• Assign “basic” outgoing corlists (equivalent to partitions), containing a single member tag, to the respective POTS dial peers that route each type of call.
• Like creating locks

dial-peer cor list EmPt
  member Emergency
dial-peer cor list VMailPt
  member VMail
dial-peer cor list LocalPt
  member Local
dial-peer cor list LDPt
  member LD
dial-peer cor list IntlPt
  member Intl

• Assign “complex” incoming corlists (equivalent to calling search spaces), containing subsets of the member tags, to the IP phones that belong to the various classes of service.
• Like creating keys

dial-peer cor list InternalCSS
  member Emergency
  member VMail
dial-peer cor list LocalCSS
  member Emergency
  member VMail
  member Local
dial-peer cor list LDCSS
  member Emergency
  member VMail
  member Local
  member LD
dial-peer cor list IntlCSS
  member Emergency
  member VMail
  member Local
  member LD
  member Intl

• Using the command corlist outgoing corlist-name, configure the basic “partition” corlists as outgoing corlists assigned to the corresponding POTS dial peers:
• Like assigning locks to destination or dial-peer

dial-peer voice 100 pots
  corlist outgoing EmPt
  destination-pattern 911
  no digit-strip
  direct-inward-dial
  port 1/0:23

dial-peer voice 101 pots
  corlist outgoing VMailPt
  destination-pattern 914085551234
  forward-digits 11
  direct-inward-dial
  port 1/0:23

dial-peer voice 102 pots
  corlist outgoing LocalPt
  destination-pattern 9[2-9]......
  forward-digits 7
  direct-inward-dial
  port 1/0:23

dial-peer voice 103 pots
  corlist outgoing LDPt
  destination-pattern 91[2-9]..[2-9]......
  forward-digits 11
  direct-inward-dial
  port 1/0:23

dial-peer voice 104 pots
  corlist outgoing IntlPt
  destination-pattern 9011T
  prefix-digits 011
  direct-inward-dial
  port 1/0:23

• Using the command corlist outgoing corlist-name, configure the basic “CSS” corlists as incoming corlists assigned to the IP Phones:
• Like assigning keys

ephone dn 2001
  corlist incoming InternalCSS
ephone dn 2002
  corlist incoming IntlCSS

• Using the command cor outgoing corlist-name, configure the basic “CSS” corlists as incoming corlists assigned to the IP Phones:

voice register pool 3001
  cor incoming InternalCSS default
voice register pool 3002
  cor incoming IntlCSS default

• Show cor list with members

Router# show dial-peer cor