Nortel Networks 1000 - Manual (Page 543)

Operation 543
far-end PBX" (page 547) and Figure 168 "Two-way, loop DR, TIE trunk
call connection sequence - outgoing call to far-end PBX" (page 548) also
applies to outgoing calls on a DID trunk.
Figure 163
Two-way, loop DR, TIE trunk call states - outgoing call to far-end PBX
Note: Where no far-end answer supervision is provided, the party at
the near-end hangs up, after recognizing far-end call termination.
In an outgoing call configuration, the NT8D14 Universal Trunk Card is
connected to an existing PBX by a tie trunk. See
Figure 173 "Two-way,
loop DR, tie trunk call states - outgoing call to far-end PBX" (page 553) .
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 CS 1000 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
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.