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626 NT8D14 Universal Trunk card
When the called party answers, an answer supervision signal is sent by the
software, causing the CS 1000 to reverse battery and ground on the tip and
ringleads to the far-end. Far-end disconnect is initiated by opening the loop
while the near-end disconnect is initiated by restoring normal battery and
ground. The operation represented in
trunk call states - incoming call from far-end PBX" (page 635)
"Two-way, loop DR, tie trunk call connection sequence - incoming call from
far-end PBX" (page 636)
Outgoing calls
In an outgoing call configuration, the NT8D14 Universal Trunk card is
connected to an existing PBX by a tie trunk. See
DR, TIE trunk call states - outgoing call to far-end PBX" (page 627)
Figure 180 "Two-way, loop DR, TIE trunk call connection sequence -
outgoing call to far-end PBX" (page
An outgoing call from the near-end seizes the trunk facility by placing a
low-resistance loop across the tip and ring leads. Outward addressing is
then applied from the System in the form of DTMF tones or dial pulses. If
answer supervision is provided by the far-end, reverse battery and ground
on the tip and ring leads are returned. The operation represented in
181 "Two-way, loop DR, TIE trunk call states - outgoing call to far-end PBX"
(page 629)
sequence - outgoing call to far-end PBX" (page 630)
outgoing calls on a DID trunk.
In an outgoing call configuration, the universal trunk card is connected
to another PBX by a TIE trunk. See
trunk call states - outgoing call to far-end PBX" (page 631)
"Two-way, loop DR, TIE trunk call connection sequence - outgoing call to
far-end PBX" (page
An outgoing call from the near-end seizes the trunk facility by placing a
low-resistance loop across the tip and ring leads. Outward addressing is
then applied from the Meridian 1 in the form of DTMF tones or dial pulses. If
answer supervision is provided by the far-end, reverse battery and ground
on tip and ring is returned. The operation represented in
"Two-way, loop DR, TIE trunk call states - outgoing call to far-end PBX"
(page 631)
sequence - outgoing call to far-end PBX" (page 632)
outgoing calls on a DID trunk.
Copyright © 2003-2008, Nortel Networks
.
Note: Where no near-end answer supervision is provided, the party at
the far-end hangs up after recognizing near-end call termination.
and
Figure 182 "Two-way, loop DR, TIE trunk call connection
Note: Where no far-end answer supervision is provided, the party at
the near-end hangs up, after recognizing far-end call termination.
632).
and
Figure 184 "Two-way, loop DR, TIE trunk call connection
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Figure 187 "Two-way, loop DR, tie
also applies to incoming DID trunk calls from a CO.
628).
Figure 183 "Two-way, loop DR, TIE
and
Figure 188
Figure 179 "Two-way, loop
and
Figure
also applies to
and
Figure 184
Figure 183
also applies to
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