Example. Activate prefix function by entering ##1111#8#1#0# combination. Then enter a
prefix, in this case 370 and dial ##1111#8#3#370#0# combination.
Now each time you dial number 123456 in
VoiceUSB
device, in telephone number will be dialled
with prefix 370 123456.
6.3.3
Polarity reverse
After activating this function, the polarity reverse will perform when the over party will answer
the call. Otherwise, the polarity reverse will perform when the user picks up the phone connected to
the
VoiceUSB
device. To enter the mode control menu, dial 9# in the main
Service menu
.
Dial 1# in Polarity reverse mode menu for activation.
Dial 2# in Polarity reverse mode menu for deactivation.
6.3.4
Call duration indicating signal
Dial 10# in main menu in order to get to Call duration indicating signal menu.
The signal indicating call duration can be turned on/off with the help of the phone. The call
duration is indicating with a beep per minute.
In Call duration indicating signal menu press 1#, to enable the function.
Press 2#, to disable Call duration indicating signal function.
##1111# 10#
2#
0#
##1111# 10#
1#
0#
##1111#
10#
...
0#
##1111# 9#
2#
0#
##1111# 9#
1#
0#
##1111#
9#
... 0#
##1111# 8#
3# Prefix>#
0#
