Incoming calls – Nortel Networks 1000 User Manual
Page 555
Operation
555
Senderized operation for DID and two-way loop DR trunks
Incoming calls
If the far-end is senderized, the near-end can operate in any mode:
Immediate Start (IMM), Delay Dial (DDL) or Wink (WNK) start, as assigned
at the STRI prompt in the Trunk Administration program LD 14. See
.
Note:
If a ground start trunk, the outpulse towards office occurs after
ground detection. If a loop start trunk, the outpulse towards office
occurs one second later.
For immediate start, following the seizure signal, the far-end starts pulsing
after the standard delay (normally 65 ms, minimum).
For delay dial or wink start modes, stop/go signaling (off hook/on hook
or battery/ground reversal) is returned by the System after receipt of
the seizure signal. The delay dial (stop) signal begins immediately upon
seizure and ends (go signal) 384 ms later. The wink start (stop) signal
begins 384 ms after seizure and ends (go signal) 256 ms later. The
far-end detecting the go signal starts pulsing after the standard delay
(normally 55 ms, minimum). Stop/go signaling, in addition to the signaling
function, serves as an integrity check to help identify a malfunctioning
trunk.
If required, the near-end can be configured to provide pseudo-answer
supervision at the expiration of the end-of-dial timer. End-of-dial timer
settings are made at the EOD (non-DTMF) or ODT (DTMF) prompts in the
Trunk Route Administration program LD 16.
The operation represented in
Figure 176 "Two-way, loop DR, TIE trunk
call states - incoming call through senderized, tandem PBX from a
CO/FX/WATS trunk" (page 557)
also applies to incoming calls on a DID
trunk from a CO.
If the far-end is senderized, the near-end can be operated in any mode:
immediate start (IMM), delay dial (DDL) or wink (WNK) start, as assigned
at the STRI prompt in the Trunk Administration program LD 14. See
.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.