Nortel Networks Remote Gateway 50 - Manual (Page 194)

Page 194 of 258 Dialing Plan configuration
553-3001-207 Standard 2.00 January 2006
For specific examples on the dialing plans, refer to “Dialing plan examples”
on
page 193 .
• Option 1: DN ranges in the main office and SRG are unique, and DNs for
SRG IP Phones are the same in both Normal and Local mode. This is the
recommended configuration to support seamless dialing on both
systems. See “Option 1: DN ranges in the main office and SRG are
unique; DNs for SRG IP Phone are the same in Normal and Local Mode”
on
page 200 .
• Option 2: DN ranges in the main office and SRG overlap, and DNs for
SRG IP Phones are the same in both Normal and Local mode. See
“Option 2: DN ranges in the main office and SRG overlap; DNs for SRG
IP Phones are the same in Normal and Local Mode” on
page 205 .
• Option 3: DNs of SRG IP Phones and DNs in the main office overlap in
Normal Mode, but are unique in Local Mode. See “Option 3: DNs of
SRG IP Phones and DNs in the main office overlap in Normal Mode, but
are unique in Local Mode” on
page 211 .
Call scenarios
Call scenarios fall into the following categories:
• Common call scenarios occur in all CDP calls, regardless of which
option is used.
• Unique call scenarios occur only within certain CDP options.
This section describes the common call scenarios. The unique call scenarios
are described with the configuration of the corresponding option, starting on
page 200 .
Normal Mode: Main office telephone calls an analog phone at the
SRG
The call is routed through the NRS and handled by the SRG. Figure 62 shows
how the call proceeds.