A new value is available in the Insert Digits field on the Uniform Dial Plan Table screen. This new value takes the location prefix of the caller from the Locations screen. The software adds the location prefix to the front of the called number. The software then analyzes the entire dialed string, and routes the call based on the administration on the Dial Plan Parameters screen.
Non-IP telephones and trunks inherit the location number of the cabinet, the remote office, or the gateway to which they are connected.
IP telephones and trunks obtain their location number indirectly.
On the Network Region screen, you administer a location number that applies to all telephones in that IP region. If a location field is left blank on the Network Region screen, an IP telephone obtains its location from the location of the cabinet that contains the C-LAN board.
IP trunks obtain the location from the location of their associated signaling group.
Either direct administration, which is only possible for remote office signaling groups, or the ways described for IP telephones, determines the location.
If the location prefix is not administered correctly, the software does not route calls correctly. A location prefix is not administered correctly if:
