Settings
50
DTMF mode
Use this function to switch the DTMF sending mode.
Display contrast
Use this function to alter the contrast of the 2-line LCD.
Service:
2=configuration?
>
Call "Configuration"
Go to "DTMF mode"
Configuration:
08=DTMF mode?
Inband
>
Confirm your choice
("DTMF mode" is inband)
DTMF mode:
01=Inband?
Inband
>
Go to "Outband"
and
confirm
Configuration:
08=DTMF mode?
Outband
>
The switchover is
displayed
Service:
2=configuration?
>
Call "Configuration"
Go to "Contrast"
Configuration:
09=Contrast?
4
>
Confirm your choice;
Contrast is set to 4
Contrast:
nnnnn
5
>
Increase to required
contrast or
reduce and
Contrast:
nnn
3
>
confirm the setting
Configuration:
09=Contrast?
3
>
The switchover to 3 is
displayed
