10
x2 Addendum
Data Over Voice
Data Over Voice (DOV) is a feature that allows the I-modem to make more cost
effective 3.1 kHz analog calls while allowing the I-modem to send digital data
at 56 kbps.
DOV is becoming widely used due to the fact that Regional Bell Operating
Companies charge less for analog calls than digital calls. DOV allows users to
pay a lower fee while taking advantage of the digital transmission.
Protocols Supported by Data Over Voice
You can use Data Over Voice with V.120 and Multilink PPP calls.
Configuring Data Over Voice
Use the following *V2 settings to control Data Over Voice:
To force
Use these commands
V.120 DOV calls
*V2=0 and S69.5=1
Multilink PPP DOV calls
*V2=5 and S69.5=1 and the usual
PPP setting
Incoming analog Multilink PPP calls
through the data port
*V2=5 , S69.5=1 and S67.2=1 and
the usual PPP setting
