COMSPHERE 3900 Series Modems

Security Password Entry Techniques

The previous sections described how to set up and configure your network for dial access security. Once configured and enabled, you must now supply a password to originate or answer a call.

The following examples demonstrate how to enter an Answer Access security password string and an Originate Access password string.

Answer Access Password (VF-Side and DTE-Side Entry Techniques)

Answer Access password security uses two password entry techniques: VF-side password and DTE-side password entry. A VF-side password consists of DTMF tones and is entered by the originating caller via the AT command set, the DCP, or manually with an attached telephone.

A VF-side password can be entered with the AT dial command. The following examples illustrate two ways to enter a VF-side password:

TYPE: ATDT5551234W12345678#

or

ATDP5551234T@12345678#

Where: ATD is the AT dial command.

P and T are Pulse dial and Tone (DTMF) dial modifiers.

5551234 is the phone number.

W is the second dial tone dial modifiers.

@is the wait for quiet answer dial modifiers.

12345678 is the 8-digit password. VF-side passwords can be from 1 to 8 digits long and are restricted to decimal digits.

#is the password terminator character.

NOTE

While pulse dial can be used to originate the call, DTMF tones must be used for the password. This can be accomplished by using the P and T modifiers appropriately. Refer to the Dial command in Chapter 14, AT Command Set and S-Registers, for more on modifiers.

A DTE-side password is entered after the modems have trained, but before a normal connection is established. The following example illustrates how to enter a DTE-side password:

TYPE: abc123

PRESS: Enter

Where: abc123 is a 6-alphanumeric character password. Characters used for DTE-side passwords are case-insensitive. DTE-side passwords can be from 1 to

6 characters in length.

If a valid password is entered, then the modems connect and data can pass.

12-16

September 1998

3910-A2-GN32-40

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Image 178
Digicom 3911, 3910 Security Password Entry Techniques, Answer Access Password VF-Side and DTE-Side Entry Techniques