Nortel Enterprise 1000 Reference Manual page 77

Analog Trunk Cards - NT8D14 Universal Trunk Card Page 77 of 236
Figure 29
Two-way, loop OAID, tie trunk call states – outgoing call to far-end PBX
Succession CSE 1000 (near-end)
Ground on tip, Battery on tip,
battery on ring ground on ring
Near-end
originates
Idle
Near-end
disconnect
Far-end
Far-end
disconnects
disconnect
first
Near-end
Far-end
disconnects
first answers
553-CSE6254
Succession Communication Server for Enterprise 1000 Circuit Card Reference Guide