MyPBX Standard Administrator Guide
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call. The default is 4, but better results can be achieved if set
to 6 or even 8. Remember, the higher the number, the more
time will be required to release a channel. A higher setting
lowers the probability that you will encounter random
hang-ups.
Busy Interval
The busy detection interval.
Busy Pattern
If Busy Detection is enabled, it is also possible to specify the
cadence of your busy signal. In many Countries, it is
500msec on, 500msec off. Without Busy Pattern specified,
MyPBX Standard will accept any regular sound-silence
pattern that repeats <Busy Count> times as a busy signal. If
you specify Busy Pattern, then MyPBX Standard will further
check the length of the tone and silence, which will further
reduce the chance of a false positive disconnection.
Frequency Detection
Used for Frequency Detection (Enable detecting the busy
signal frequency or not).
Busy Frequency
If the Frequency Detection is enabled, you must specify the
local frequency.
Hangup Polarity
Detection
The call will be considered as
“hang up” on a polarity
reversal.
3) Answer Detection
Answer Detection will help the system to accurately bill your calls.
If the PSTN trunk could send polarity reversal signal after a call is established, you
could choose "Polarity Detection" in this field. If not, you could choose "Ring
Detection" and configure the rest of the settings accordingly.
Table 6-3 PSTN trunk-Answer Detection
Answer Detection
Answer Detection
Select which type to detect the call as answered.
Default: MyPBX Standard will start to charge once you
grab the PSTN trunk to call out, whether the call is
answered or not.
Polarity Detection: if the PSTN trunk supports polarity,
you can choose "Polarity detection". When the callee
answers the call, the provider will send a polarity signal,
and then MyPBX Standard starts to bill.
Ring Detection: if you choose this option, MyPBX
Standard will charge the call according to PSTN trunk
ring back tone detection. When the "ring duration" or the
"ring interval duration" detected on MyPBX Standard is
larger than the standard parameters or custom
parameters, the call is detected as ANSWERED.
*Standard parameters:
when you configure the "Tone Zone