Nortel BCM50 Configuration Manual page 399

Table 81 Fallback configuration to create fallback between two systems (Sheet 2 of 2)
Task
Set up Scheduling to allow
you to manually start and
stop schedules.
Confirm or set up a route
using the line pool to access
the local PSTN.
Set up a route that contains
the PRI fallback lines.
Set up a route that contains
the VoIP line pool.
Create a destination code
that matches the Destination
Digit(s).
Define the Normal and VoIP
shedules.
Confirm or create a
destination code for the
PSTN.
Define Normal and VoIP
schedules.
Activate the VoIP schedule
from the control set.
Making calls through a private VoIP network gateway
From a telephone on BCM Ottawa, a caller dialing to a telephone on BCM Santa Clara must dial
the destination code, which includes the destination digits for the BCM Santa Clara remote
gateway, and the DN of the telephone. For example, dialing 3322 would connect as follows:
• 3 is the destination code. If a suitable level of QoS is available, the call is routed through the
VoIP trunks and through the remote gateway with a destination digit of 3. The call is sent
across the PDN using the IP address of the Santa Clara BCM.
• 3322 is linked to the target line associated with DN 3322.
• The call arrives at the phone with the DN 3322.
Chapter 46 Setting up VoIP trunks for fallback
Settings for Settings for
Santa Clara Ottawa
Service setting: Manual
Overflow: Selected
Route: 009
External # External #
Line Pool: <publiclinepool>
DN type: Public
Route: 774
Dialout: N/A
PSTN Line Pool: BlocA
DN type: Private
Route: 867
Dialout: N/A
VoIP Line: BlocF
DN type: Private
Destination Destination
code: 2 code: 3
Normal: Route 774, Absorb 0 digits
VoIP: Route 867, Absorb 0 digits
Destination code: 9
Normal: Route 009, absorb All digits
VoIP: Route 009, absorb All digits
3321 2221
Location in Element Manager
Configuration > Telephony >
Scheduled Services, VoIP
(Schedule 4).
Configuration > Telephony >
Dialing Plan > Routing
Configuration > Telephony >
Dialing Plan > Routing
Configuration >Telephony >
Dialing Plan > Routing
Configuration > Telephony >
Scheduled Services
FEATURE 873
Networking Configuration Guide
399