This Recommendation provides the Stage 2 description for the Call Forwarding supplementary services, supported by an ISDN. The Stage 2 descriptions are comprised of the switching functions and the signalling information flows.
The Call Forwarding Unconditional supplementary service permits a served user to have the network send to another number all incoming calls for the served user�s number (or just those associated with a specified basic service). The served user�s originating service is unaffected. If this service is activated, calls are forwarded no matter what the condition of the termination.
The Call Forwarding on Busy supplementary service permits a served user to have the network send to another number all incoming calls for the served user�s number (or just those associated with a specified basic service) which meet busy at the served user�s ISDN number. The served user�s originating service is unaffected.
The Call Forwarding on No Reply supplementary service permits a served user to have the network send to another number all incoming calls for the serviced user�s number (or just those associated with a specified basic service) which meet no reply at the served user�s ISDN number. The served user�s originating service is unaffected.
This Recommendation provides the Stage 2 description for the Call Deflection supplementary service, supported by an ISDN.
The Stage 2 descriptions are comprised of the switching functions and the signalling information flows.
The Call Deflection supplementary service permits a serviced user to, in real time, request that the network redirects an incoming call addressed to the served user�s ISDN number to another number. The served user�s originating service is unaffected.