Rich Adamson wrote:
Steve, what would help a bunch of people trying to implement your
spandsp is some kind of help document that at least attempts to
describe some of the debug statements shown below. When the average
person reads "hdlc underflow" or "T4 timeout in state 9", we don't
have a clue what those statements really mean or even if they need
to be addressed. I've probably spent at least 60 hours doing the
same thing and finally gave up.
If you really want to reduce your support overhead for spandsp, put
something together that gives the implementor at least some clues
how to read that stuff, and maybe even a clue how to resolve some
of the more common issues. The foip.html appears to be a reasonable
'background', but certainly not anything reaonable to resolve the
OP debug output below.
Actually, that page explains why he is wasting his time. It wasn't
intended as background material. It was intended as the minimum needed
to get people off my back when they insist that if they use ulaw or alaw
FAXing over a VoIP channel must be OK. Its the only support for this
kind of issue they will get from me.
Regards,
Steve
See http://www.soft-switch.org/foip.html
Steve
Zen Kato wrote:
After I did rxfax(...|debug), I got the followings;
......(snip).......
DIS: 80 00 ce f4 80 80 81 80 80 80 18
HDLC underflow in state 9
Changed from phase 4 to 3
T4 timeout in state 9
Changed from phase 3 to 4
DIS:
Prefer 256 octet blocks
Can receive fax
Supported data signalling rates: V.27ter and V.29
R8x7.7lines/mm and/or 200x200pels/25.4mm
2D coding
Scan line length: 215mm
Recording length: Unlimited
Receiver's minimum scan line time: 0ms at 3.85 l/mm: T7.7 = T3.85
R8x15.4lines/mm
Minimum scan line time for higher resolutions: T15.4 = T7.7
North American Letter (215.9mm x 279.4mm)
North American Legal (215.9mm x 355.6mm)
DIS: 80 00 ce f4 80 80 81 80 80 80 18
HDLC underflow in state 9
Changed from phase 4 to 3
T2 timeout
Start receiving document
Changed from phase 3 to 4
DIS:
Prefer 256 octet blocks
Can receive fax
Supported data signalling rates: V.27ter and V.29
R8x7.7lines/mm and/or 200x200pels/25.4mm
2D coding
Scan line length: 215mm
Recording length: Unlimited
Receiver's minimum scan line time: 0ms at 3.85 l/mm: T7.7 = T3.85
R8x15.4lines/mm
Minimum scan line time for higher resolutions: T15.4 = T7.7
North American Letter (215.9mm x 279.4mm)
North American Legal (215.9mm x 355.6mm)
DIS: 80 00 ce f4 80 80 81 80 80 80 18
......(snip).......
Does HT488 version-1.0.1.2 work OK?
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