NEC NEAX 2000, Руководство по программированию

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ND-91285-001(E)
DECEMBER, 1999
Page 159
Revision 1.0
(2/2)
DISTINCTIVE RINGING (CONT’D)
SERVICE CONDITIONS (CONT’D)
9. When calling a third station (THREE-WAY CALLING, CONSULTATION HOLD, etc.), the ringing
signal sent to the called station depends on the type of call placed on hold. If the call is a trunk call,
external ringing is provided; if the call is a station call, internal ringing is provided.
10. The distinctive lamp indication is available on D
term
for DIRECT IN TERMINATION, AUTOMATED
ATTENDANT, DIRECT INWARD DIALLING and Tie Line incoming call, including recall.
11. The lamp indication patterns are as follows:
a. Incoming Internal Calls : red, 120-IPM flashing
b. Incoming External Calls : green or red, 120-IPM flashing
The lamp colour for incoming external call can be selected from green or red on a per trunk route basis.
12. The lamp colour of transferred incoming external calls depends on the system data assignment.
13. If the system is installed behind the main PBX, this feature provides DISTINCTIVE RINGING pat-
terns to the D
term
in behind system so that the D
term
user can distinguish between internal calls from
the main PBX and external incoming calls.
The C.O. trunk to the main PBX must be assigned on TRUNK LINE APPEARANCE on the D
term
. In
this case, DELAYED RINGING is not available.