Re: No Answer to PPS repeat (and other problems - so there seems to be some basic configuration/hardware problem)

Sebastian,

The difference is the call route and the use of T.38 on the problematic
call.

So, the problematic call experiences what HylaFAX sees as "poor line
audio quality", and eventually one or both endpoints give up retrying.

The resolution would be to change phone service providers, disable T.38,
and otherwise make attempts to remove audio quality problems.

Thanks,

Lee.


On 06/29/2019 03:09 AM, Sebastian Schmitt wrote:
> Dear Hylafax-Community,
>
> we're running a hylafax server (6.0.6-7+deb9u1) installed on a raspberry pi (3), running raspbian stretch. 
> The resulting fax-connections to our remote sides are unstable (about 3 of 10 faxes could not be sent at all / result in partial pages at the receiver side) but I cannot figure out why - cannot recognize any pattern.
>
> In hope of getting a hint on where to search for a fix, I want to post a log of one of our problems ("no response to PPS repeat") here:
>
> https://gist.github.com/sebastian-schmitt/80cee628d6de4d3dd56a650a44664300
>
> I would be so happy if anyone could point me to the actual problem(s) - thank you so much in advance!
>
> **update**
>
> In the meantime, we were able to setup another raspi behind another Fax-line and could send the same document with success - the log looks pretty much the same until lines 121 (error-log) and 153 (success-log) respectively:
>
> https://gist.github.com/sebastian-schmitt/b9fdfdb8714660832016bcf6361aba9d
>
>
>
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