Re: [hylafax-users] High Error Rates revisited.

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

On 2004.08.02 10:29 Stephen Carville wrote:
> I upgraded to 4.2.0rc2 but I am still having problems with errors.
> for
> example:

> Aug 02 09:32:52.41: [ 5799]: RECV: 45 total lines, 32 bad lines, 10
> consecutive bad lines
> Aug 02 09:32:52.41: [ 5799]: RECV: REJECT page quality, 28% good lines
> (95%
> required)
> Aug 02 09:32:52.41: [ 5799]: RECV: end page
> Aug 02 09:32:52.53: [ 5799]: --> [10:NO CARRIER]
> Aug 02 09:32:52.53: [ 5799]: <-- [9:AT+FRH=3\r]
> Aug 02 09:32:53.49: [ 5799]: --> [7:CONNECT]
> Aug 02 09:32:53.62: [ 5799]: --> [2:OK]
> Aug 02 09:32:53.62: [ 5799]: RECV recv EOP (no more pages or
> documents)
> Aug 02 09:32:53.62: [ 5799]: <-- [9:AT+FRS=7\r]
> Aug 02 09:32:53.74: [ 5799]: --> [2:OK]
> Aug 02 09:32:53.74: [ 5799]: <-- [9:AT+FTH=3\r]
> Aug 02 09:32:53.86: [ 5799]: --> [7:CONNECT]
> Aug 02 09:32:55.07: [ 5799]: --> [2:OK]
> Aug 02 09:32:55.07: [ 5799]: RECV send RTN (retrain negative)
> Aug 02 09:32:55.07: [ 5799]: <-- [9:AT+FRH=3\r]
> Aug 02 09:32:56.23: [ 5799]: --> [7:CONNECT]
> Aug 02 09:32:56.36: [ 5799]: --> [2:OK]
> Aug 02 09:32:56.36: [ 5799]: RECV recv DCN

The receiver hung up when HylaFAX told them that the page was not 
received properly.

> Aug 02 07:04:26.03: [ 5796]: RECV: 51 total lines, 36 bad lines, 11
> consecutive bad lines
> Aug 02 07:04:26.03: [ 5796]: RECV: REJECT page quality, 29% good lines
> (95%
> required)
> Aug 02 07:04:26.03: [ 5796]: RECV: end page
> Aug 02 07:04:26.03: [ 5796]: --> [10:NO CARRIER]
> Aug 02 07:04:26.03: [ 5796]: <-- [9:AT+FRH=3\r]
> Aug 02 07:04:27.00: [ 5796]: --> [7:CONNECT]
> Aug 02 07:04:27.13: [ 5796]: --> [2:OK]
> Aug 02 07:04:27.13: [ 5796]: RECV recv EOP (no more pages or
> documents)
> Aug 02 07:04:27.13: [ 5796]: <-- [9:AT+FRS=7\r]
> Aug 02 07:04:27.25: [ 5796]: --> [2:OK]
> Aug 02 07:04:27.25: [ 5796]: <-- [9:AT+FTH=3\r]
> Aug 02 07:04:27.37: [ 5796]: --> [7:CONNECT]
> Aug 02 07:04:28.58: [ 5796]: --> [2:OK]
> Aug 02 07:04:28.58: [ 5796]: RECV send RTN (retrain negative)
> Aug 02 07:04:28.58: [ 5796]: <-- [9:AT+FRH=3\r]
> Aug 02 07:04:29.86: [ 5796]: --> [7:CONNECT]
> Aug 02 07:04:30.00: [ 5796]: --> [2:OK]
> Aug 02 07:04:30.00: [ 5796]: RECV recv DCN

Again, the receiver hung up when HylaFAX told them that the page was 
not received properly.

HylaFAX can only do so much.  If there is noise on the line or if the 
modulators on the modem generate noise, then HylaFAX cannot resolve 
that.  Both of these logs indicate that some catastrophic noise event 
occurred to interfere with the data it received from the sender.  
HylaFAX informed the sender that the data was not acceptable, and the 
sender chose to hang up.  What more can HylaFAX do?

You could check your lines for noise, and you could try a different 
brand and model modem (thus, switching the modulators) to see if a 
different one handles the problem a bit better.

Lee.

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