U
SER
M
ANUAL
©
VOI
SPEED
L
TD
.
22
PSTN AC
Termination
Determines the impedance on the PSTN line connected to the FXO
port.
PSTN
Disconnect / Dial
Tone
Depending on the Country, audio signals over the PSTN line can be
transmitted using either two frequencies (MF) or only one (SF).
Amongst these signals is the
Disconnection Tone
.
Disconnect
Examination
Mode
Here you can configure how the adapter should detect the
disconnection tone and its duration. These settings should not be
modified unless strictly necessary.
PSTN Silence
Timeout
This setting determines the time the adapter should wait before
disconnecting the call in case no audio is detected on the line.