Nortel Networks 1000 - Manual (Page 559)

Operation 559
The operation represented in Figure 180 "Two-way, loop DR, tie trunk
call states - incoming call through a senderized, tandem PBX from a CO"
(page 563)
also applies to incoming calls on a DID trunk from a CO.
Outgoing calls
When DDL or WNK mode is used, outgoing calls require a stop/go signal
from the far-end so that the near-end cannot outpulse until the far-end is
ready to receive digits. See
Figure 177 "Two-way, loop DR, TIE trunk call
states - outgoing call through far-end PBX to CO/FX/WATS" (page 560) .
Note: Pseudo-answer supervision is provided by near-end at expiration
of end-of-dial timer. Where no far-end answer supervision is provided,
the party at the far-end hangs up after recognizing near-end call
termination.
When DDL or WNK mode is used, outgoing calls require a stop/go signal
from the far-end so that the near-end cannot outpulse until the far-end is
ready to receive digits. See
Figure 179 "Two-way, loop DR, TIE trunk call
states - outgoing call through far-end PBX to CO/FX/WATS" (page 562) .
Note: Pseudo-answer supervision is provided at the near-end at
expiration of end-of-dial timer.Where no far-end answer supervision is
provided, the party at the far-end hangs up, after recognizing near-end
call termination.
When DDL or WNK mode is used, outgoing calls require a stop/go signal
from the far-end so that the near-end cannot outpulse until the far-end is
ready to receive digits. See
Figure 181 "Two-way, loop DR, tie trunk call
states - outgoing call through far-end PBX to CO" (page 564) .
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.