At Commands For Fax; At+Fbadlin Bad Line Treshold - Siemens MC35 Command Set

AT Command Set

3 AT Commands for FAX

The following commands can be used for FAX transmission. If the ME is acting as a Fax modem to a
PC-based application (e.g. "WinFax") it is necessary to select the proper Service Class (Fax Class)
provided by the ME. The ME reports its Service Class capabilities, the current setting and the range of
services available. This is provided by the AT+FCLASS command (see pg. 51).
Note: When sending a FAX with a standard FAX application for Personal Computers it is recom-
mended to use autobauding (AT+IPR=0).
Currently defined Service Class values (see TIA/EIA-592-A)
ME +FCLASS parameter
C
0
C
1
1.0
C
2
2.0
2.1
8
Reserved
Note: Be aware that there is a difference between Service Classes 2 and 2.0! Only the first is applica-
ble to the ME.
Responses that may occur during a fax call are presented in the form of Unsolicited Result Codes
(URCs). A summary of Fax specific URCs is listed in Chapter 9.1.4, Table 14.

3.1 AT+FBADLIN Bad Line Treshold

Read command
This command defines the "Copy-Quality-OK"-threshold. If <badline> consecu-
tive lines have pixel count errors in normal resolution (98 dpi) mode, then the
AT+FBADLIN?
copy quality is unacceptable. If <badline> * 2 consecutive lines have pixel count
errors in fine resolution (196 dpi) mode, then the copy quality is unacceptable.
"Copy Quality Not OK" occurs if either the error percentage is too high or too
many consecutive lines contain errors. A value of 0 implies that error checking
is not present or disabled.
Response
<badlin> OK
Parameter
See write command
Write command Response
OK
AT+FBADLIN=
<badlin>
If error is related to ME functionality:
ERROR
Parameter
<badlin>
Reference Note
EIA PN-2388 Used for Fax class 2 only
MC35_ATC_01_V05.00
Service Class
data modem
Service Class 1
Service Class 1
manufacture specific
Service Class 2
Service Class 2
Voice DCE
0 – 10 – 255 bad lines
Page 49 of 256
Reference, Standard
e.g. TIA/EIA-602 or ITU V.25ter
EIA/TIA-578-A
ITU-T T.31
this document and EIA PN-2388 (draft)
TIA/EIA-592
TIA/EIA-592-A or ITU-T T.32
TIA IS-101
15.07.2002