Call routing procedure for outgoing calls

For this application, most calls take place as described in the preceding examples. Internal calls between locations are resolved as follows:

  User Dials Correct call route Correct user Mapping, number in use Destination line
1 VoIP telephone location A 21 2# none 21 LOCATION_B
  1. Internal call between two VoIP terminal devices at locations A and B. The dialed number 21 matches the route 5 2# in the call routing table. The call router sends the call out over the line to the remote SIP PBX without changing the number.

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