Re: [hylafax-users] T.30 Timeout

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

On 2003.12.21 23:17 Priya wrote:
> Hi,
> I have attached the log.
> Can u pls figure out whats the problem ?

Dec 22 12:35:15.41: [ 2769]: RECV: TCF 1371 bytes, 96% non-zero, 7 
zero-run
Dec 22 12:35:15.41: [ 2769]: RECV: reject TCF (too many non-zero, max 
10%)
Dec 22 12:35:15.41: [ 2769]: RECV: reject TCF (zero run too short, min 
1800)

Dec 22 12:35:21.65: [ 2769]: RECV: TCF 1143 bytes, 30% non-zero, 40 
zero-run
Dec 22 12:35:21.65: [ 2769]: RECV: reject TCF (too many non-zero, max 
10%)
Dec 22 12:35:21.65: [ 2769]: RECV: reject TCF (zero run too short, min 
1500)

Dec 22 12:35:27.91: [ 2769]: RECV: TCF 914 bytes, 4% non-zero, 338 
zero-run
Dec 22 12:35:27.91: [ 2769]: RECV: reject TCF (zero run too short, min 
1200)

These are indicative of a noisy or poor connection.

Dec 22 12:35:34.97: [ 2769]: RECV: TCF 1406 bytes, 3% non-zero, 1350 
zero-run
Dec 22 12:35:34.98: [ 2769]: --> [10:NO CARRIER]
Dec 22 12:35:34.98: [ 2769]: DELAY 75 ms
Dec 22 12:35:35.06: [ 2769]: TRAINING succeeded

Finally it passes at 7200 bps... (but still it's not perfect)

Dec 22 12:35:35.06: [ 2769]: <-- [9:AT+FTH=3\r]
Dec 22 12:35:35.26: [ 2769]: --> [7:CONNECT]
Dec 22 12:35:35.26: [ 2769]: <-- HDLC<3:FF C8 21>
Dec 22 12:35:35.26: [ 2769]: <-- data [3]
Dec 22 12:35:35.26: [ 2769]: <-- data [2]
Dec 22 12:35:36.44: [ 2769]: --> [2:OK]
Dec 22 12:35:36.44: [ 2769]: MODEM input buffering enabled
Dec 22 12:35:36.44: [ 2769]: MODEM set XON/XOFF/FLUSH: input ignored, 
output generated
Dec 22 12:35:36.44: [ 2769]: <-- [10:AT+FRM=74\r]
Dec 22 12:35:37.07: [ 2769]: --> [7:CONNECT]
Dec 22 12:35:37.07: [ 2769]: RECV: begin page
Dec 22 12:35:43.22: [ 2769]: RECV/CQ: Bad 2D pixel count, row 373, got 
2490, expected 1728
Dec 22 12:35:43.24: [ 2769]: RECV/CQ: Bad 2D pixel count, row 374, got 
1729, expected 1728
Dec 22 12:36:05.01: [ 2769]: RECV/CQ: Bad 1D pixel count, row 1556, got 
1752, expected 1728
Dec 22 12:36:05.01: [ 2769]: RECV/CQ: Bad 2D pixel count, row 1557, got 
555, expected 1728

This is indicative of noise, still.

Dec 22 12:36:24.72: [ 2769]: RECV/CQ: Bad 1D pixel count, row 192, got 
2005, expected 1728
Dec 22 12:36:24.86: [ 2769]: RECV: 827 bytes of data, 193 total lines
Dec 22 12:36:24.86: [ 2769]: RECV: end page
Dec 22 12:36:24.86: [ 2769]: --> [10:NO CARRIER]
Dec 22 12:36:24.86: [ 2769]: <-- [9:AT+FRH=3\r]
Dec 22 12:36:30.35: [ 2769]: --> [7:CONNECT]
Dec 22 12:36:30.35: [ 2769]: --> [6:54 CD 62 FA 10 03]
Dec 22 12:36:30.35: [ 2769]: --> [5:ERROR]
Dec 22 12:36:30.35: [ 2769]: MODEM Command error
Dec 22 12:36:30.35: [ 2769]: FCS error

So it's not surprising that you get this... which is caused by DLE+ETX 
appearing in the data stream due to noise.

Lee.


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