Grandstream UCM6510 User Manual - Manual (Page 140)

Firmware Version 1.0.2.5 UCM6510 IP PBX User Manual Page 139 of 313
• Ascend
When the call goes out from this analog trunk, it will always try to use
the first idle FXO port. The port order that the call will use to go out
would be port 1->port 2->port 10->port 16. Every time it will start with
port 1 (if it's idle).
• Poll
When the call goes out from this analog trunk, it will use the port that is
not used last time. And it will always use the port in the order of port
1->2->10->16->1->2->10->16->1->2->10->16..., following the last port
being used.
• Descend
When the call goes out from this analog trunk, it will always try to use
the last idle FXO port. The port order that the call will use to go out
would be port 16->port 10->port 2->port 1. Every time it will start with
port 16 (if it's idle).
The default setting is “Ascend” mode.
Tone Settings
Busy Detection
Busy Detection is used to detect far end hangup or for detecting busy
signal. The default setting is "Yes".
Busy Tone Count
If "Busy Detection" is enabled, users can specify the number of busy tones
to be played before hanging up. The default setting is 2. Better results
might be achieved if set to 4, 6 or even 8. Please note that the higher the
number is, the more time is needed to hangup the channel. However, this
might lower the probability to get random hangup.
Congestion Detection
Congestion detection is used to detect far end congestion signal. The
default setting is "Yes".
Congestion Count
If "Congestion Detection" is enabled, users can specify the number of
congestion tones to wait for. The default setting is 2.
Tone Country
Select the country for tone settings. If "Custom" is selected, users could
manually configure the values for Busy Tone and Congestion Tone. The
default setting is "United States of America (USA)".
Busy Tone
Syntax:
f1=val[@level][,f2=val[@level]],c=on1/off1[-on2/off2[-on3/off3]];
Frequencies are in Hz and cadence on and off are in ms.
Frequencies Range: [0, 4000)
Busy Level Range: (-300, 0)
Cadence Range: [0, 16383].
Select Tone Country "Custom" to manually configure Busy Tone value.