GoHigh MG3000-R, Руководство пользователя

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port off hook, and dials a correct number, but callee does not pick up the phone.
When it is over time, the PSTN line will send busy tone;
d) FXO port is set to Normal Mode, call from PSTN line
，
FXO port off hook, and
user dials a wrong number, the PSTN line will send busy tone;
During the learning process, keep busy tone for some time (>30s), in order to guarantee
the learning accuracy.
3
、 、 、 、
Observer FXO Learning Busy Tone Status:
Modify parameters:

“Country or District” = “Learning”;

“Enable Busytone Learning” = “Yes” and Submit
Observer the format of busy tone in the display box change or not:
If it changes, we may regard it has learned the busy tone, and use the busy tone
learned to detect; if it does not change, we can conclude that it did not learn the busy
tone, and adjust the “Learning Frequency Mode”, repeat 1, 2, 3.
4
、 、 、 、
Finish Learning Busy Tone, Switch to Busy Tone Detection Mode:
Modify parameters:

“Country or District” = “Learning”;

“Enable Busytone Learning” = “No”;

Busy tone: display the busy tone learned
 Detection Type
 Noise Estimation Control

Cadence Cycles

Detect Delay Time

Drop Delay Time
For the tones through auto learning, you need pay atthention when you configure the
detection configurations:
（
1
）
If the busytone learned has only one frequency, “Detection Type” choose
“one-tone detecting use lower FFT”; “Noise Estimation Control” choose “after
removing one tone”; and “Cadence Cycles” choose “Verify one on-off cadency”;
（
2
）
If the busytone learned has two frequencies, “Detection Type” choose “two-tone
detecting use lower FFT”; “Noise Estimation Control” choose “after removing two
tones”; and “Cadence Cycles” choose “Verify one on-off cadency”;
（ 3 ） “Detect Delay Time” can be set according to your requirement. The default
value is 300ms. If on time of the busy tone learned is short, you can decrease
this value properly;