Nortel Networks 1000 - Manual (Page 506)

506 NT8D14 Universal Trunk card
Figure 134
Loop start call connection sequence - incoming call
Outgoing calls
For outgoing calls, the software sends an outgoing seizure message
to place a low-resistance loop across the tip and ring leads toward
the CO. See
Figure 135 "Ground start call states - incoming call from
CO/FX/WATS" (page 507) and Figure 136 "Ground start call connection
sequence - incoming call from CO/FX/WATS" (page 508) . When the CO
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
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.