Nortel 1000 Description, Installation And Operation Manual page 437

Provisioning IP Trunk 3.01 (and later) in OTM 2.1 (and later)
Figure 122
Remote Node Properties – Digits dialed tab with a selected destination node
In the example seen in Figure 122, the dialing plan digits to be added are
613-961-xxxx.
7 Click the ADD button to add this dialing prefix to the list of
previously-configured dialing plans displayed in the lower window.
8 To change the information for a destination node, select the desired
destination node in the lower window, make the needed changes in the
correct field above the lower window, and click Change. See Figure 123
on page 438.
IP Trunk Description, Installation, and Operation
Page 437 of 644