Toshiba TECRA A4 User Manual page 202

;
Return to command mode. Causes the modem to return to com-
mand mode after dialing a number, without disconnecting the
call.
S=n Dial a telephone number previously stored using the &Zn=X
command (See &Zn=X command for more information). The
range is 0-3.
En Echo command
This command controls whether or not the characters entered from your
computer keyboard are displayed on your monitor (echoed) while the
modem is in command mode.
E0
Disables echo to the computer.
E1
Enables echo to the computer (default).
Result Codes:
n=0,1
OK
ERROR Otherwise
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.
H0
Modem goes on-hook (default).
H1
Modem goes off-hook.
Result Codes:
n=0,1
OK
ERROR Otherwise
In Request ID information
This command displays product information about the modem.
I0 Returns modem identity string and driver version number.
I3 Same as I0.
I9 Returns region ID in English.
Result Codes:
n=0,3,9
OK
ERROR Otherwise
Appendix C
C-3