Nortel Networks Video Gaming Accessories 553-3001-211 Manual De Usuario
NT8D14 Universal Trunk card
Page 585 of 894
Note: Pseudo-answer supervision is provided by near-end at expiration
of end-of-dial timer. Where no far-end answer supervision is provided,
the party at the far-end hangs up after recognizing near-end call
termination.
of end-of-dial timer. Where no far-end answer supervision is provided,
the party at the far-end hangs up after recognizing near-end call
termination.
Outgoing automatic, incoming dial operation
Incoming calls
When the NT8D14 Universal Trunk card is seized by the far-end on an
incoming call, a low-resistance loop is placed across the tip and ring leads.
Addressing is then sent by the far-end 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.
incoming call, a low-resistance loop is placed across the tip and ring leads.
Addressing is then sent by the far-end 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.
and Figure 132 on
.
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.
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.
and Figure 134 on
.