Nortel Meridian Meridian 1 Feature Description And Administration page 1393

Scenarios involving Satellite (SAT) Routes
Figure 121
A scenario involving two SAT-Routes where VSIG = NO and SIGO is not set to STD
Figure 122
A scenario involving two SAT-Routes where VSIG = YES and SIGO is not set to STD
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Network Signaling on Virtual Network Services
When Satellite Routes are involved, NSIG on VNS behaves as shown in the
following scenarios.
VSIG = NO and SIGO is not set to STD
Referring to Figure 121, a call from Node 1 to Node 3 passes a Satellite
Route. The route between Node 2 and Node 3 is also a Satellite Route;
therefore, the call is blocked at Node 2.
VSIG = YES and SIGO is not set to STD
Referring to Figure 122, a call from Node 1 to Node 3 passes a Satellite
Route. The route between Node 2 and Node 3 is also a Satellite Route;
therefore, the call is blocked at Node 2. The Satellite information is
transported over the bearer.
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