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The following prerequisites apply to your network:
■ To use both B channels together, the destination must be running
Multilink PPP, either on the NETBuilder bridge/router with a built-in
ISDN port or on the TA.
■ If you use built-in ISDN ports and ISDN TAs in the same dial pool, and
you are using Multilink PPP on the SuperStack II bridge/router, you can
use the TA at only 56 or 64 Kbps.
■ When using a dial pool, you cannot accept phone calls from other
vendors’ bridge/routers.
!3.2 (path) !4 (path)
!3.1 (path)
(B1) 64 K (B2) 64 K (TA) 64 K
Dial pool
1-510-555-1234
1-408-555-1000
"Saratoga"
"Berkeley"
NETBuilder/II
®
128 K
64 K
1-415-555-2000 (B1)
1-415-555-2001 (B2)
"LosAltos"
NETBuilder
Router
CONNECT
OFFICE
System WAN ISDN LAN
Line
Act
Line
Error
Link
Connect
Fault
Send
Active
Fault
Line
Active
Fault
Run
Load
Test
B1 B2
Status
Pwr Fwd
Alert
128 K
128 K
!3.2 (path) !4 (path)
!3.1 (path)
(B1) 64 K (B2) 64 K (TA) 64 K
1-510-555-1234
1-408-555-1000
"Saratoga"
"Berkeley"
NETBuilder/II
®
128 K
64 K
1-415-555-2000 (B1)
1-415-555-2001 (B2)
"LosAltos"
NETBuilder
Router
CONNECT
OFFICE
System WAN ISDN LAN
Line
Act
Line
Error
Link
Connect
Fault
Send
Active
Fault
Line
Active
Fault
Run
Load
Test
B1 B2
Status
Pwr Fwd
Alert
128 K
!V1
Call 1
Description: The local bridge/router dials Saratoga.