User's Guide for ZyXEL Omni 56K USB Modem

5-8

5.1.3 Extended AT* Command Sets

Table 13. Extended AT* Command Sets

COMMAND OPTIONS FUNCTION AND DESCRIPTION Ref.
*Cn Character length, including start, stop and
parity bit: S15.3-4
*C0 * 10-bit character length.
*C1 11-bit character length.
*C2 9-bit character length.
*C3 8-bit character length.
*Dn n=0 to 3 Set default dial pointer at telephone
directory location 'n.' S29
*D0 * (See also S35.4 and S38.0).
*En Modem error control negotiation: S21.0
*E0 * If error control negotiation fails, keep the
non-error control connection.
*E1 If error control negotiation fails, disconnect
the call (hang-up).
*Gn *G0 Disables security function (default).
*G1 Enables type 1 security, with password
check.
*G2 Enables type 1 security, with password
check and call back.
*G3 Enables type 2 security, with password
check.
*G4 Enables type 2 security, with password
check and call back.
*G5 Enables type 2 security, with password
check and call back; remote site enters the
call back number.
*G9 Reset the supervisor password to "ZyXEL".