Nortel Remote Gateway 50 Configuration Manual page 195

Dialing Plan configuration Page 195 of 258
Figure 62
Normal Mode: Main office telephone calls an analog phone at the SRG
Normal Mode: Main office telephone calls a branch IP Phone
The call is recognized as a main office number, and the call is directed to the
SRG IP telephone using internal routing at the main office.
Normal Mode: Main office telephone makes a call over the PSTN
through the SRG
Routing is configured so the destination code of the PSTN through the SRG
is at the start of the dialing string. Figure 63 shows how the call proceeds.
Main Office Configuration for Survivable Remote Gateway 50 Configuration Guide