Customizes the tone for each condition.
F: the frequency of the tone (ranges from 200
to 7000 Hz). If set to 0 (0Hz), it means a
pause between tones. A tone can be
composited at most four different
frequencies (value format: F1+F2+F3+F4).
D: the time duration (in milliseconds, ranges
from 0 to 30000ms) of ringing the tone.
You can configure at most eight different
tones for one condition, each tone separated
by comma (e.g. 250/200, 0/1000,
200+300/500, 600+700+800+1000/2000).
Note: It works only if the parameter
―voice.tone.country‖ is set to Custom.
voice.tone.dial = 800+200/1000, 0/100,
500/1200, 500+600+950+1500/5000