Nortel Networks 311 User Manual
Operation
615
Figure 170
Loop start call connection sequence
Loop start call connection sequence
Direct inward dial operation
Incoming calls
An incoming call from the CO places a low-resistance loop across the tip
and ring leads. See
and ring leads. See
and
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.