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Re: Failed job also



Hi Tuc,

At 19:48 13/10/98 -0400, TTSG wrote:
>Hi,
>
>	I too am on a "MODEM ZYXEL U1496E/V 6.19 P" and getting MPS problems as
>such:

Don't worry about your modem....

it's this:

>> Oct 13 10:18:31.93: [ 4019]: --> [20:+FCS:0,3,0,2,1,0,0,5]
.....
>> Oct 13 10:18:59.75: [ 4019]: SEND recv RTN (retrain negative)

and this:

>> Oct 13 10:19:05.91: [ 4019]: --> [20:+FCS:0,3,0,2,1,0,0,5]
.....
>> Oct 13 10:19:33.96: [ 4019]: SEND recv RTN (retrain negative)

and this too:

>> Oct 13 10:19:39.78: [ 4019]: --> [20:+FCS:0,3,0,2,1,0,0,5]
.....
>> Oct 13 10:20:07.63: [ 4019]: SEND recv RTN (retrain negative)

which are causing the grief.

To fix:
Some fax machines are very sensitive and and ask for a retrain on any
encoding error, unfortunately when hylafax adds the tagline to each fax
page some extra bytes are added between the tagline and the page.  There is
a patch to fix this, the tagline patch here:
http://www.elgro.demon.co.uk/patchlist.html

If this still occurs the other possible solution is to run your modem in
Class1, the Class 1 driver when receiving a RTN decreases speed on the next
retry, this helps if the phone line is a little noisy, the fax is more
likely to get through at a lower speed.  In the same situation the class
2/2.0 driver retries to send at the same speed which tends to cause a loop
like above.

- Robert



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