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Operation 643
The operation represented in Figure 196 "Two-way, loop DR, tie trunk call
states - incoming call through a senderized, tandem PBX from a CO" (page
647) 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 193 "Two-way, loop DR, TIE trunk call
states - outgoing call through far-end PBX to CO/FX/WATS" (page 644).
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 195 "Two-way, loop DR, TIE trunk call
states - outgoing call through far-end PBX to CO/FX/WATS" (page 646).
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 197 "Two-way, loop DR, tie trunk call
states - outgoing call through far-end PBX to CO" (page 648).
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright © 2003-2008, Nortel Networks
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