Courier v.Everything - can't receive fax

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Hi,

Graham Leggett wrote:
> I have just installed a Courier v.Everything modem which is working 100%
> as a ppp dialin server. However, it doesn't seem to be able to recognise
> a fax call, when a connection is attempted from a fax machine, a NO
> CARRIER is returned as follows:
> 
> 09/18 02:46:37 yR1 waiting for ``RING''
> 09/18 02:46:37 yR1 got: [0d][0a]RING ** found **
> 09/18 02:46:37 yR1 send: ATA[0d]
> 09/18 02:46:37 yR1 waiting for ``CONNECT''
> 09/18 02:46:37 yR1 got: [0d][0a]ATA[0d][0d][0a]NO CARRIER
> 09/18 02:46:54 yR1 found action string: ``NO CARRIER''
> 09/18 02:46:54 ##### failed A_FAIL dev=ttyR1, pid=1369, caller=none,
> conn='', name=''

This is quite unusual. I've done a fair amount of testing with the
Courier V.34/V.everything, and *this part* worked very well.

> I was wondering what configuration is needed for mgetty to tell the
> modem to answer fax calls.

"modem-type auto".

> The following conversation happens when the modem is configured. Will
> this config accept a fax?
> 
> 09/18 02:45:01 yR1 tio_get_rs232_lines: status: RTS CTS DSR DTR
> 09/18 02:45:01 yR1 lowering DTR to reset Modem
> 09/18 02:45:02 yR1 tss: set speed to 57600 (10001)
> 09/18 02:45:02 yR1 tio_set_flow_control( HARD )
> 09/18 02:45:02 yR1 waiting for line to clear (VTIME), read: 
> 09/18 02:45:02 yR1 send: AT&H1&B1[0d]
> 09/18 02:45:02 yR1 waiting for ``OK''
> 09/18 02:45:02 yR1 got: AT&H1&B1[0d][0d][0a]OK ** found **
> 09/18 02:45:02 yR1 mdm_send: 'AT+FCLASS=2.0'
> 09/18 02:45:02 yR1 mdm_command: string 'AT+FCLASS=2.0'
> 09/18 02:45:02 yR1 mdm_command: string 'OK' -> OK
> 09/18 02:45:02 yR1 mdm_send: 'AT+FAA=1;+FCR=1'
> 09/18 02:45:02 yR1 mdm_command: string 'AT+FAA=1;+FCR=1'
> 09/18 02:45:02 yR1 mdm_command: string 'OK' -> OK

This should be sufficient.

Maybe you need a more recent firmware? Try to get USRs "X2" upgrade, as
they have fixed quite a number of fax annoyanes in that firmware.

If it still doesn't work, it could be a problem with the calling fax
machine -- does it emit a "calling tone"? If not, that could be the reason
(dunno for sure, but many modems need this tone to recognize a FAX.
ZyXELs, for example, do not, they will simply try FAX, but auto-detection
is a lot faster nevertheless if you have the CNG tone).

gert
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Gert Doering - Munich, Germany      gert@greenie.muc.de
fax: +49-89-3545980     gert.doering@physik.tu-muenchen.de
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