Avaya Nortel Communication Server 1000 Reference page 408

NT8D14 Universal Trunk card
in the form of battery-ground or loop pulses, or DTMF tones. The trunk is released at the far-
end when the loop is opened. When the near-end detects an open loop, it returns to a normal
state.
See Figure 124: Two-way, loop OAID, TIE trunk call states - incoming call from far-end PBX
page 408 and
call from far-end PBX
Outgoing calls
When seized as a dial-selected outgoing trunk, the near-end places the battery on the tip and
ground on the ring. This alerts the far-end of the seizure. The far-end responds with a low
resistance across the tip and ring leads.
Figure 124: Two-way, loop OAID, TIE trunk call states - incoming call from far-end PBX
408 Circuit Card Reference
Figure 125: Two-way, loop OAID, TIE trunk call connection sequence - incoming
on page 409.
Comments? infodev@avaya.com
on
July 2011