CXR AJ 2885P Manual de usuario descargar pdf (Pagina 37)

User's Manual V34bis Fax-modem - AJ 2885 P

AJ 2885 P - Page 37

6.3. Answerback security

This security mode is controlled by the answering modem, and depends on a password

exchange which authorizes a modem connection, i.e.:

Calling

modem

Answering

modem

TDxx

ring

Training

ENQ ()

"AC24Y"

(for example)

"AC24Y"

control process

If the answerback matches the one stored in memory within two seconds after an ENQ code

was sent by the answering modem, access is granted.

Otherwise the modem disconnects automatically.

To store the answerback code, see the following example. The password can be up to 12

characters long.

Store answerback (for example: AC24Y)

AT&A:AC24Y:AC24Y <CR>

To disable answerback security

AT&A:: <CR>

6.4. Callback security

6.4.1. Automatic callback

This security mode is controlled by the

answering modem.

It sends a password and then calls back

the telephone number associated with that

password.

See %SA and %SB commands in the

reference manual.

Example:

HERE THERE

N 3132 N 4142

ATS0=2

AT%SB1 AT%SA1

AT&Z3:HERE:CALLB1:3132:::CD

ATD4142 Calling

Training

Password?

« call B1 »

Disconnecting

Calling (3132)

Training

Password ?

« Call B1 »

Modems are connected

This double security guarantees password and localization of the calling modem.

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CXR AJ 2885P Manual de usuario Pagina 37

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