Re: [hylafax-users] missing fax pages

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

ACL wrote:
> modem: patton 2977
>
> There are 5 pages sent to patton but only 1st and 5th pages are 
> received. Other are missing. Why missing pages are not being resent?

> Mar 07 12:09:31.94: [ 5203]: RECV recv PPS (partial page signal)
> Mar 07 12:09:31.94: [ 5203]: RECV recv MPS (more pages, same document)
> Mar 07 12:09:31.94: [ 5203]: RECV received 10 frames of block 1 of page 1

> Mar 07 12:09:33.35: [ 5203]: RECV send MCF (message confirmation)

There is page one received fine.

> Mar 07 12:09:42.06: [ 5203]: RECV recv PPS (partial page signal)
> Mar 07 12:09:42.06: [ 5203]: RECV recv MPS (more pages, same document)
> Mar 07 12:09:42.06: [ 5203]: RECV received 256 frames of block 1 of page 2

> Mar 07 12:09:45.25: [ 5203]: RECV send PPR (partial page request)

Page 2 was not received fine, requested sender to retransmit specific 
frames...

> Mar 07 12:09:47.11: [ 5203]: RECV received frame number 0

Notice that we already got frame 0 on page 2.  The sender treated our 
PPR signal as if it were MCF... observe...

> Mar 07 12:09:53.79: [ 5203]: RECV recv PPS (partial page signal)
> Mar 07 12:09:53.79: [ 5203]: RECV recv MPS (more pages, same document)
> Mar 07 12:09:53.79: [ 5203]: RECV received 10 frames of block 1 of page 3

Page 3 ???  See, it treated our previous PPR as if it were MCF.  At this 
point HylaFAX should probably abort the call and transmit DCN... but it 
doesn't... and instead it simply waits for all of the frames to fill up...

> Mar 07 12:09:56.99: [ 5203]: RECV send PPR (partial page request)

> Mar 07 12:10:04.94: [ 5203]: RECV recv PPS (partial page signal)
> Mar 07 12:10:04.94: [ 5203]: RECV recv MPS (more pages, same document)
> Mar 07 12:10:04.94: [ 5203]: RECV received 256 frames of block 1 of page 4

And now we get page 4 without ever having confirmed Page 2!

> Mar 07 12:10:08.12: [ 5203]: RECV send PPR (partial page request)

Notice that we keep requesting retransmissions for one reason or another...

> Mar 07 12:10:16.02: [ 5203]: RECV recv PPS (partial page signal)
> Mar 07 12:10:16.02: [ 5203]: RECV recv EOP (no more pages or documents)
> Mar 07 12:10:16.02: [ 5203]: RECV received 256 frames of block 1 of page 5

... and not surprising... now page 5...

> Mar 07 12:10:19.21: [ 5203]: RECV send PPR (partial page request)

Here we are rejecting the frames again...

> Mar 07 12:10:20.44: [ 5203]: RECV recv DCN (disconnect)

And it would seem again that the sender thinks that PPR means MCF.

What kind of sender is this?  The sender's ECM protocol is very broken.

Thanks,

Lee.


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