Analog Hardware Configuration; Figure 41: Fxs Ports Signaling Preference; Figure 42: Fxo Ports Acim Settings - Grandstream Networks UCM6510 IP PBX User Manual

ANALOG HARDWARE CONFIGURATION

The analog hardware (FXS port and FXO port) on the UCM6510 can be configured under web GUI-
>PBX->Ports Config->Analog Hardware. Click on to edit signaling preference for FXS port or
configure ACIM settings for FXO port.
Select "Loop Start" or "Kewl Start" for each FXS port. And then click on "Update" to save the change.

Figure 41: FXS Ports Signaling Preference

For FXO port, users could manually enter the ACIM settings by selecting the value from dropdown list for
each port. Or users could click on "Detect" for the UCM6510 to automatically detect the ACIM value. The
detecting value will be automatically filled into the settings.

Figure 42: FXO Ports ACIM Settings

Note:
ACIM setting is very important for the FXO/PSTN line to work properly on the UCM6510. If the users
experience echo, caller ID or disconnecting issue, please make sure to run the ACIM detection to find out
the correct value for impedance setting.
Firmware Version 1.0.0.25 UCM6510 IP PBX User Manual Page 89 of 229
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