Re: [hylafax-users] problem with a modem

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

On 2003.10.09 18:10 Abacus Computer wrote:

> Oct 09 16:37:16.43: [12920]: <-- [24:AT+FDIS=1,5,0,2,0,0,0,0\r]
> Oct 09 16:37:16.55: [12920]: --> [2:OK]
> Oct 09 16:37:16.55: [12920]: DIAL 90114989244315349
> Oct 09 16:37:16.55: [12920]: <-- [22:ATDT90114989244315349\r]
> Oct 09 16:40:16.55: [12920]: SEND FAILED: JOB 420 DEST +4989244315349 
> ERR Unknown problem (check modem power)
> Oct 09 16:40:16.55: [12920]: <-- [5:ATH0\r]
> Oct 09 16:40:16.66: [12920]: --> [4:ATH0]
> Oct 09 16:40:16.66: [12920]: --> [2:OK]

By the fact that echo is off prior to the ATDT command and echo is on 
after the ATDT command you know that either there is another program 
communicating with the modem besides faxgetty/faxsend *OR* the modem 
firmware "crashes" during the handshaking portion of the facsimile 
protocol before +FCON is reported.

Assuming there is not interference from another program, if the two 
modems are not identical hardware (including firmware revisions), then 
I would blame the difference.  If they are identical, then swap them, 
and if the problem follows the hardware, then the modem is faulty and 
must be replaced... unless you can run it in Class 1.

Lee.

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