NEC NEAX 2400 IPX, Programming Manual

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NDA-24305 CHAPTER 6
Page 257
Revision 1.0
CALL FORWARDING SUPPLEMENTARY SERVICE (SS-CF) WITH REROUTING
C-158 CALL FORWARDING SUPPLEMENTARY SERVICE (SS-CF) WITH REROUTING
1. General Description
This feature provides Call Forwarding service activated to be followed by IS-13873/ETS 300 257 protocol
(SS-CF). By using this feature, all incoming calls can be forwarded automatically after the destination was
programmed against the called party. Also, rerouting function is activated with SS-CF service.
The functions of this feature are as follows.
1. Call Forwarding-Supplementary Service
Example)
The service activation procedures below are explained under this condition.
Station A: Calling Station
Station B: Called Station (Forwarding Station)
Station C: Forwarded Station
(a) Supplementary Service - Call Forwarding Unconditional (SS-CFU)
All incoming calls routed to the station are forwarded to the designated destination automatically.
(1) Station A originates a call to Station B.
(2) The call is forwarded to Station C.
(a) Supplementary Service - Call Forwarding Busy (SS-CFB)
When the called station is busy, an incoming call terminated at the station is forwarded to the
designated destination automatically.
When Station B is busy, the call is forwarded to Station C.
(b) Supplementary Service - Call Forwarding No Reply (SS-CFNR)
When the called station has not answered for a predetermined time, an incoming call terminated at the
station is forwarded to the designated destination automatically.
(1) When Station A originates a call to Station B (Station B is ringing).
(2) Since Station B has not answered for a predetermined time a call is forwarded to Station C.