Figure 26: Ucm6100 Fxo Tone Settings; Figure 27: Ucm6100 Pstn Detection - Grandstream Networks UCM6100 Series User Manual

4. Click on "Detect" to start PSTN detection.

If there are two FXO ports connected to PSTN lines, use the following settings for auto-detection.
Detect Model: Auto Detect.
Source Channel: The source channel to be detected.
Destination Channel: The channel to help detecting. For example, the second FXO port.
Destination Number: The number to be dialed for detecting. This number must be the actual
PSTN number for the FXO port used as the destination channel.
Firmware Version 1.0.5.19

Figure 26: UCM6100 FXO Tone Settings

Figure 27: UCM6100 PSTN Detection

UCM6100 Series IP PBX User Manual Page 76 of 183