Memory map ..................................................................................................A-3
System interrupts ...........................................................................................A-6
Serial port addresses .....................................................................................A-8
Connector functions .......................................................................................A-9
Modem features .............................................................................................B-1
Operating your modem ..................................................................................B-3
Modem commands ........................................................................................B-5
Executing commands ...........................................................................B-5
Command format ..................................................................................B-5
AT commands .......................................................................................B-6
V.42bis commands ...............................................................................B-11
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