USRobotics V.34 AT S53.0=1 .2=1 &W Enter, AT S53.0=1 .1=1 .2=1 &W Enter, AT &Z5 = 555-8976 Enter

COURIER HIGH SPEED MODEMS

1.Register S53 is the bit-mapped register used to enable Dial Security. The &W command must be used to save Register S53 settings to NVRAM. Otherwise, when the computer is powered off and on again, or the modem is reset using ATZ, it will default to S53=0, Dial Security disabled.

To enable Dial Security with autopass and local access password protection, but without prompting, type the following command:

AT S53.0=1 .2=1 &W <Enter>

The following command enables Dial Security with autopass, prompting, and local access password protection.

AT S53.0=1 .1=1 .2=1 &W <Enter>

NOTE: Enabling local access password protection disables the &Zn=s command that stores up to ten phone numbers. Stored phone numbers occupy the same space in NVRAM as the dialback numbers for Dial Security accounts, and cannot be used when Dial Security is enabled.

If the local access password is not protected, the &Zn=s command overwrites the corresponding Dial Security dialback number. For example, the following command overwrites the dialback number for account 5:

AT &Z5 = 555-8976 <Enter>

However, if the local access password is protected, and a user tries to use the &Zn=s command, an ACCESS DENIED message is displayed.

WARNING: Be sure DIP switch 10 is OFF so the modem will load the settings stored in NVRAM. If someone sets DIP switch 10 ON, the low performance template settings (&F0) are loaded, and Dial Security is disabled. If this should happen, reset DIP switch 10 to OFF, power off the modem and power it back on, or reset the modem by typing ATZ <Enter> so that the proper settings take effect.

D-6 Dial Security