C
5
HAPTER
Ringba
-3
ck
Special
-3
Busy
Special
-7
Ringba
ck
Transfe
-3
r Dial
France
Tone Plan
Tone
ARS 2nd Dial
Busy
Camp-on
Conference
Confirmation
Dial Tone
Feature Active Dial
Interrupted Dial
Message Notification
Modem Answer
Override
Paging
Reorder
Ringback
Special Busy
Special Ringback
-12
-4
-4
-12
-4
-4
-16
-8
-8
-12
-4
-4
Frequency (Hz)
440
440
520
400
440
440
440
440
440/520/440
2025
1400
440
440
440
440
440
A
A : S
PPENDIX
IGNALING
-7
-4
-7
-7
-4
-7
-11
-8
-11
-7
-4
-7
Cadence (s)
Continuous
0.5 on, 0.5 off, repeat
0.2 on, off
0.6 on, off
Continuous
Continuous
0.75 on, 0.75 off, then
continuous
0.75 on, 0.75 off, then
continuous
440 (0.75 on, 0.75 off) x 2, then
520 (0.2 on, 0.75 off) x 1, then
440 (0.75 on, 0.75 off, repeat
forever)
0.95 on, 0.05 off, repeat
0.3 on, off
0.2 on, off
0.5 on, 0.5 off, repeat
1.5 on, 3.5 off, repeat
0.35 on, 0.35 off, repeat
1.5 on, 3.5 off, repeat
T
P
ONE
LANS
, T
,
T
ONES
AND
RANSMISSION
-5
-10
-5
-10
-9
-14
-5
-10
99