Ringing Patterns; Groups (2448 System); Indicator Light Patterns - AT&T Spirit Communications System User Manual

Ringing Patterns

Two short rings—call from outside system
One long ring—call from another intercom extension
One short, one long ring—transferred call
Three short rings—transfer return or line reserve callback
(or auto callback on a 2448 system)
One low-volume ring pattern—call when your telephone
is busy (or calls are forwarded on a 2448 system)

Indicator Light Patterns

I USE (The telephone line you are
currently using)
THEY USE (The telephone line
someone else currently using)
IS
RINGING (A telephone line that is
ringing normally)
CALLBACK SIGNAL (The system is
calling you for a line reserve callback
or transfer return)
I HOLD (A telephone line that you
have placed on HOLD)
THEY HOLD (A telephone line that
someone else has placed on HOLD)
5
Start
1 Second

Groups (2448 System)

Telephones in 2448 systems are assigned to
groups according to their intercom extension
numbers.
Intercom Extension Numbers
10-17
18-25
26-33
34-41
42-49
50-57
Very Long On, Short Off, repeat
Steady On
Long On, Long Off, repeat
Short On, Short Off, repeat
One Short Flash, Very Long Off, repeat
Two Short Flashes, Very Long Off, repeat
Group Number
61
62
63
64
65
66