C
5
HAPTER
ab
→
5
5
AC
Os
ab
→
1
1
AC
Ohl
Tone Plans
Tone plans permit the station user to distinguish different stages of call progress and different types of
calls. Each tone is assigned a level which ensures an acceptable quality.
:
NOTE
DTMF tones are supported.
1.
Digital (DGS) and IP (WAN) tones are conveyed as Real-Time Transfer Protocol (RTP) packets.
2.
"" indicates that this interface is not supported in this country.
3.
Australia
Tone Plan
Tone
ARS 2nd Dial
Busy
Camp-on
Conference
Confirmation
Dial Tone
Feature Active Dial
Interrupted Dial
Message Notification
2
-5
-5
-5
-2
-9
-9
-9
Frequency (Hz)
400/425
425
425
425
400/425
400/425
400/425
400/425
400/425
A
A : S
PPENDIX
-6
-5
-5
-5
-5
-4
-5
-5
Cadence (s)
Continuous
0.375 on, 0.375 off, repeat
0.25 on, off
0.8 on, off
0.1 on, 0.1 off, 0.1 on, 0.7 off,
repeat
Continuous
(0.95 on, 0.05 off) x 2, then (0.1
on, 0.1 off, 0.1 on, 0.7 off,
repeat forever)
(0.95 on, 0.05 off) x 2, then (0.1
on, 0.1 off, 0.1 on, 0.7 off,
repeat forever)
(0.95 on, 0.05 off) x 2, then (0.1
on, 0.1 off, 0.1 on, 0.7 off,
repeat forever)
T
ONE
, T
,
T
IGNALING
ONES
AND
RANSMISSION
-7
5
-4
-5
-7
1
-5
-6
P
LANS
-4
-5
92