Hardware Technical Reference Manual
North America
Tone Plan
Tone
Frequency
(Hz)
Cadence (s)
ARS 2nd Dial 350/440 Continuous
Busy 480/620 0.5 on, 0.5 off, repeat
Camp-on 440 0.1 on, 0.05 off, repeat x 2
Conference 440 1 on, off
Confirmation 350/440 Continuous
Dial Tone 350/440 Continuous
Feature Active Dial 350/440 (0.1 on, 0.1 off) x 8, then continuous
Interrupted Dial 350/440 (0.1 on, 0.1 off) x 8, then continuous
Message Notification 350/440 350/440 (0.1 on, 0.1 off) x 4, then 440 (0.2 on, 0.2 off) x 2, then 350/440 (0.1 on,
0.1 off) x 4, then 350/440 continuous
Modem Answer 2025 0.95 on, 0.005 off, repeat
Override 440 0.8 on, off
Paging 440 0.2 on, off
Reorder 480/620 0.25 on, 0.25 off, repeat
Ringback 440/480 1 on, 3 off, repeat
Special Busy 480/620 0.5 on, 0.5 off, repeat
Special Ringback 440/480 0.5 on, 0.5 off, 0.5 on, 2.5 off, repeat
Transfer Dial 350/440 (0.1 on, 0.1 off) x 3, then continuous
Voice Mail 440 0.6 on, off
Note: This plan also provides support for United States MultiLevel Precedence and Preemption (MLPP) priority.
Tone
Output Level (in dBm)
iONS
abONS
ONS iOPS OPS
iACO
abACO
abACOhl
iACOs ACO ACOs DCO ATT
ARS 2nd Dial -23 -23 --- -20 -20 -20 -20 -20 -20 -20
Busy -27 -27 --- -24 -24 -24 -24 -24 -24 -24
Dial -23 -23 --- -20 -20 -20 -20 -20 -20 -20
Camp-on -17 -17 --- -14 -14 -14 -14 -14 -14 -14
Conference -19 -19 --- -16 -16 -16 -16 -16 -16 -16
Confirmation -23 -23 --- -20 -20 -20 -20 -20 -20 -20
Feature Active Dial -22 -22 --- -19 -19 -19 -19 -19 -19 -19
Interrupted Dial -23 -23 --- -20 -20 -20 -20 -20 -20 -20
Message Notification -17 -17 --- -14 -14 -14 -14 -14 -14 -14
Modem Answer -20 -20 --- -17 -17 -17 -17 -17 -17 -17
Override -17 -17 --- -14 -14 -14 -14 -14 -14 -14
Paging -17 -17 --- -14 -14 -14 -14 -14 -14 -14
Reorder -27 -27 --- -24 -24 -24 -24 -24 -24 -24
Ringback -22 -22 --- -19 -19 -19 -19 -19 -19 -19
Special Busy -23 -23 --- -20 -20 -20 -20 -20 -20 -20
Special Ringback -22 -22 --- -19 -19 -19 -19 -19 -19 -19
Transfer Dial -23 -23 --- -20 -20 -20 -20 -20 -20 -20
Voice Mail -17 -17 --- -14 -14 -14 -14 -14 -14 -14
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