Pstn Detection; Figure 101: Ucm6510 Fxo Tone Settings - Grandstream Networks UCM6510 User Manual

PSTN Detection

PSTN Detection
The UCM6510 provides PSTN detection function to help users detect the busy tone, Polarity Reversal and
Current Disconnect by making a call from the PSTN line to another destination. The detecting call will be
answered and up for about 1 minute. Once done, the detecting result will show and can be used for the
UCM6510 settings.
1. Go to UCM6510 web GUI->PBX->Basic/Call Routes->Analog Trunks page.
2. Click to edit the analog trunk created for the FXO port.
3. In the dialog window to edit the analog trunk, go to "Tone Settings" section and click on
"PSTN Detection".
4. Click on "Detect" to start PSTN detection.
Frequencies Range: [0, 4000]
Busy Level Range: (-300, 0)
Cadence Range: [0, 16383].
Select Tone Country "Custom" to manually configure Busy Tone value.
Default value:
f1=480@-50,f2=620@-50,c=250/250
Click on "Detect" to detect the busy tone, Polarity Reversal and Current
Disconnect by PSTN. Before the detecting, please make sure there are
more than one channel configured and working properly. If the detection
has busy tone, the "Tone Country" option will be set as "Custom".

Figure 101: UCM6510 FXO Tone Settings

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