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In the local regeneration scenario, assume that user A is a SIP user in branch site 1 and user B is a PSTN user outside branch site 1. User A calls user B through the gateway in branch site 1. In the case that local regeneration occurs in branch site 1, RTP streams go through the following path after user A calls user B and the call between user A and user B is set up: ().

In the local regeneration scenario, assume that user A is a SIP user in branch site 1 and user B is a PSTN user outside branch site 1. User A calls user B through the gateway in branch site 1. In the case that local regeneration occurs in branch site 1, RTP streams go through the following path after user A calls user B and the call between user A and user B is set up: ().
A . User A <->branch site 1
B . User A <->central site<->branch site 1
C . User A <->branch site 1->central site->branch site 1
D . None of the above

Answer: A

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