Avaya Communication Manager Administrator's Manual page 1637

Procedures in Tips for Working with Trunk Groups
signaling to use with different types of trunk groups.
Valid entries Usage
ground-start Use ground-start signaling for two-way trunks whenever possible:
ground-start signaling avoids glare and provides answer supervision from
the far end.
loop-start In general, try to use loop-start signaling only for one-way trunks. Loop-start
signaling is susceptible to glare and does not provide answer supervision.
auto/auto The term before the slash tells Communication Manager how and when it
will receive incoming digits. The term after the slash tells Communication
auto/delay
Manager how and when it should send outgoing digits.
auto/immed
auto/wink
2-wire-ac These entries are used with CO trunks in Russia: enter the type of
connection to your central office. Check with you network service provider if
2-wire-dc
you don't know what type of connection they're using. To use these entries,
the Country field must be 15 and the CO trunks must use ports on a
3-wire
TN2199 circuit board.
auto — Used for immediate connection to a single preset destination
●
(incoming CO trunks, for example). No digits are sent, because all
calls terminate at the same place.
delay — The sending server running Communication Manager does
●
not send digits until it receives a delay dial signal (an off-hook signal
followed by an on-hook signal) from the far-end server or switch,
indicating that it's ready to receive the digits.
wink — The sending server running Communication Manager does
●
not send digits until it receives a a wink start (momentary off-hook)
signal from the far-end server or switch, indicating that it's ready to
receive the digits.
immed — The sending server running Communication Manager
●
sends digits without waiting for a signal from the far-end server or
switch.
on page 461 give specific suggestions for
Issue 2.1 May 2006
Trunk Group
1637