Nortel Networks Nortel Secure Router 2330 Instrukcja Użytkownika Pobierz pdf (Strona 14)

SSM will receive the incoming calls from SPS that are destined for PSTN. For such calls

SSM will not be able to find a mapped contact in its registration cache and hence routes the

call to configured default gateway which is SIP GW.

The following diagram shows the call flow between a branch PSTN interface/device and

branch SIP endpoint.

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 39 40

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Nortel Networks Nortel Secure Router 2330 Instrukcja Użytkownika Strona 14