Toshiba V.92 - Manual (Page 55)

55 AT Commands
AT command formats
5.375 x 8.375 ver 2.4.0
Hn Hook control
This command instructs the modem to go on-hook to
disconnect a call, or off-hook to make the phone line busy.
Result Codes:
In Request ID information
This command displays product information about the
modem.
H0 Modem goes on-hook (default).
H1 Modem goes off-hook.
OK n=0,1
ERROR Otherwise
I0 or
I3 Returns the modem identity string and driver
version number.
I1 Returns OK (no function).
I2 Returns OK (no function).
I4 Returns the driver build date.
I5 Returns the driver version, bus type (PCI,
AC97), codec type, and country.
I6 Returns OK (no function).
I7 Returns the hardware version.
I8 Returns the codec type.
I9 Returns the country ID in English.
I10 Returns OK (no function).
I11 Returns connection information.