ADSL Router User Manual
Conditions for the VoIP
The following conditions indicate that the VoIP phone has been changed to VoIP
mode:
z while PSTN call terminated
z while SIP sever is reachable and is registered successfully
Note: Only Phone 1(the port on the rear panel of the IAD) possesses
the function of PSTN Relay. So the prefix digits only have effect on port 1.
The page on the right side is the web
page for PSTN control settings.
Select Tone/Ring Signals for:
Different places have different
tone/ring signals. You have to make
sure the location of the receiver and
choose a proper one. Simply use the
drop-down list to select.
Prefix digits to dial PSTN phone
call:
The digits that you type here must be
dialed before the phone number for a
PSTN phone call. The maximum
setting is 4 digits.
Be aware that only Phone1 possesses
the function of PSTN Relay. So the
prefix digits only have effect on
Phone1.
Because the Phone1 and Phone2
ports on this device possess the
function of FXO, you can set the
PSTN phone number in these fields.
The numbers you type here can be
dialed directly through PSTN without
dialing prefix digits. Therefore, it is
convenient for you to set emergency
telephone number here, such as 110,
119, 911, 166, and any other important
and useful phone numbers.
For more detailed information of FXO,
please refer to the following section.
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