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ZyXEL Communications Omni 288S User Manual

Page 77

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Chapter 9 - Fax Operation

9-15

Status Report Result Codes

When the Omni 288S is set in the fax mode, each ATD or ATA command will
make the modem try to establish a fax connection. The Omni 288S will send a
status report result code back to the DTE (computer).

NO DIAL TONE

Tried to dial but no dial tone is detected.

NO CARRIER

Handshake fails or no carrier is detected or time-out.

BUSY

Other party's phone line is busy.

NO ANSWER

Quiet answer is not detected before time-out.

CONNECT FAX

See below.

When a fax connection is successfully established, the modem returns this
message:

CONNECT FAX/SnnnnVnTnRnLnCnP

This message includes the connection speed and the fax parameters explained in
the table below.

Field

Description

Snnnn

Fax connection speed; nnnn is a 4-digit number representing
the connection speed. nnnn =1440, 1200, 9600, 7200, etc.,
1440 and 1200 stand for 14400 and 12000.

Vn

Vertical resolution; n = 0 or 1.

Tn

Coding scheme; n = 0 or 1.

Rn

Recording width; n = 0, 1, or 2.

Ln

Recording length; n = 0, 1, or 2.

Cn

Scan line time; n = 0 to 7.

P

Remote fax number.

After each fax disconnection, the following result code is sent back to the DTE:

DISCONNECTnP

This result code informs DTE of the disconnecting status.

Field

Description

DISCONNECT0

Disconnect with remote confirmation.

DISCONNECT1

Disconnect without remote confirmation.

P

Remote fax number.

The basic AT commands ATV0 and ATQ1 do not affect the above CONNECT
and DISCONNECT status report result codes. The modem will always return the
same status format as above.