The Net-Net 4500 can perform interworking between SIP REGISTER messages and H.323 RRQs (Registration Request).
B
Different SIP Response Code mappings can be configured for each Soft-switch to which the Net-Net 4500 signals.
C
MGCP to SIP interworking function (IWF) is not supported.
D
The Net-Net 4500 media directing and control hides network topology at the forwarding level, while session routing and signaling hide it at the signaling level.
E
The Net-Net 4500 is the source and destination for all signaling messages and media streams coming into and leaving the provider's network.