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Fax function, Fax physical layer protocol – ZyXEL Communications 56K User Manual

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User's Guide for ZyXEL Omni 56K and Omni 56K Plus Modems

3-12

Verify

(Enter the new supervisor password again)

********

OK

The command AT*Hn will modify the nth user password and the supervisor password on the

screen for viewing. Again ,You will be prompted to enter the supervisor password first.

The commands below will enable different types and levels of security:

Code

Description

*G0

Disables security function.

*G1

Enables type 1 and level 1 security, with password check.

*G2

Enables type 1 and level 2 security, with password check and call-back.

*G3

Enables type 1 and level 1 security, with password check.

*G4

Enables type 1 and level 2 security, with password check and call-back.

*G5

Enables type 2 and level 2 security, with password check and call- back, remote site
enters the call-back number.

NOTE: Before the security type or level can be changed, the modem requires the supervisor

password.

For type2 security, the remote site will be prompted to enter the user password. A maximum of 3

tries in 40 seconds is allowed. If a correct password is not entered within this time limit, the line will

be disconnected. If the remote site is to enter the call-back number, it will be prompted to do so.

Fax function

Fax Physical Layer Protocol

Standard

Bit Rate [bps]

Baud Rate [baud]

Modulation

Carrier Frequency [Hz]

V.17

14400-7200

2400

TCM

1800

V.29

9600-4800

2400

QAM/DPSK

1700

V.27ter

4800-2400

1600/1200

PSK/DPSK

1800

V.21

300

300

FSK

Table 9.

Fax Physical Layer Capacity