Intracom netMod User Manual page 62

User's Manual of netMod Network Termination Unit
In order to make an AO/DI call, no additional software is required to be installed on
your PC. All you need is Windows' DialUp networking.
When netMod is operating with one or both B channels open
for data transmission, the AO/DI connection (i.e. 9600 bps
range) is placed out of operation. AO/DI operation will be re-
established as soon as the B channels are disconnected.
Also provided is the ability to use the X.25 protocol over the D
channel without simultaneous use of the AO/DI connection.
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