Grandstream Networks UCM6200 Series, User Manual, Page: 181 / 469

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UCM6200 Series User Manual
Version 1.0.20.38
PSTN Detection
The UCM6200 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 UCM6200
settings.
1.
Go to UCM6200 Web GUI → Extension/Trunk → 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 there are two methods to set
the busy tone.
•
Tone Country. The default setting is "United States of America (USA)".
•
PSTN Detection.
Figure 98: UCM6200 FXO Tone Settings
4.
Click on "Detect" to start PSTN detection.
Figure 99: UCM6200 PSTN Detection