Re: [hylafax-users] error of receiving fax

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Lirees wrote:
> Dec 28 15:54:45.46: [29397]: <-- [9:AT+FRH=3\r]
> Dec 28 15:54:45.47: [29397]: --> [7:CONNECT]
> Dec 28 15:54:45.72: [29397]: --> [2:OK]
> Dec 28 15:54:45.72: [29397]: RECV recv DCS (command signal)
> Dec 28 15:54:45.72: [29397]: REMOTE wants 14400 bit/s
> Dec 28 15:54:45.72: [29397]: REMOTE wants A4 page width (215 mm)
> Dec 28 15:54:45.72: [29397]: REMOTE wants A4 page length (297 mm)
> Dec 28 15:54:45.72: [29397]: REMOTE wants 3.85 line/mm
> Dec 28 15:54:45.72: [29397]: REMOTE wants 2-D MMR
> Dec 28 15:54:45.72: [29397]: REMOTE wants T.30 Annex A, 256-byte ECM
> Dec 28 15:54:45.72: [29397]: RECV training at v.17 14400 bit/s
> Dec 28 15:54:45.72: [29397]: <-- [11:AT+FRM=145\r]
> Dec 28 15:54:47.43: [29397]: --> [7:CONNECT]
> Dec 28 15:54:48.99: [29397]: RECV: TCF 2812 bytes, 1% non-zero, 2764 
> zero-run
> Dec 28 15:54:49.00: [29397]: --> [10:NO CARRIER]
> Dec 28 15:54:49.00: [29397]: DELAY 70 ms
> Dec 28 15:54:49.07: [29397]: TRAINING succeeded

Okay, so far so good.  Training succeeded and all looks well up until 
this point...

> Dec 28 15:54:49.07: [29397]: <-- [9:AT+FTH=3\r]
> Dec 28 15:54:49.26: [29397]: --> [7:CONNECT]
> Dec 28 15:54:49.26: [29397]: <-- data [3]
> Dec 28 15:54:49.26: [29397]: <-- data [2]
> Dec 28 15:54:50.44: [29397]: --> [2:OK]
> Dec 28 15:54:50.44: [29397]: <-- [11:AT+FRM=146\r]
> Dec 28 15:54:51.30: [29397]: --> [7:CONNECT]
> Dec 28 15:54:51.79: [29397]: RECV received frame number 0
> Dec 28 15:54:51.93: [29397]: RECV received frame number 1
> Dec 28 15:54:52.07: [29397]: RECV received frame number 2
> Dec 28 15:54:52.20: [29397]: RECV received frame number 3
> Dec 28 15:54:52.34: [29397]: RECV received frame number 4
> Dec 28 15:54:52.48: [29397]: RECV received frame number 5
> Dec 28 15:54:52.62: [29397]: RECV received frame number 6
> Dec 28 15:54:52.76: [29397]: RECV received frame number 7
> Dec 28 15:54:52.90: [29397]: RECV received frame number 8
> Dec 28 15:54:53.11: [29397]: RECV received frame number 9
> Dec 28 15:54:53.24: [29397]: RECV received frame number 10
> Dec 28 15:54:53.38: [29397]: RECV received frame number 11
> Dec 28 15:54:53.52: [29397]: RECV received frame number 12
> Dec 28 15:54:53.66: [29397]: RECV received frame number 13
> Dec 28 15:54:53.79: [29397]: RECV received frame number 14
> Dec 28 15:54:53.93: [29397]: RECV received frame number 15
> Dec 28 15:54:54.14: [29397]: RECV received frame number 16
> Dec 28 15:54:54.27: [29397]: RECV received frame number 17
> Dec 28 15:54:54.41: [29397]: RECV received frame number 18
> Dec 28 15:54:54.41: [29397]: RECV frame FCS check failed
> Dec 28 15:54:54.41: [29397]: HDLC frame not byte-oriented.  Trailing 
> byte: 0x80
> Dec 28 15:54:54.41: [29397]: HDLC frame not byte-oriented.  Trailing 
> byte: 0
> Dec 28 15:54:54.41: [29397]: RECV assumed RCP frame with block end
> Dec 28 15:54:54.41: [29397]: --> [10:NO CARRIER]

Here there is a premature carrier loss (probably silence).

> Dec 28 15:54:54.41: [29397]: <-- [9:AT+FRH=3\r]
> Dec 28 15:54:54.96: [29397]: --> [7:CONNECT]
> Dec 28 15:54:58.52: [29397]: --> [5:ERROR]

There was some audio of some sort after this, but it was not V.21 HDLC 
as expected.

> Dec 28 15:54:59.96: [29397]: <-- [9:AT+FRH=3\r]
> Dec 28 15:55:02.56: [29397]: --> [7:CONNECT]
> Dec 28 15:55:03.12: [29397]: --> [5:ERROR]

Again.

> Dec 28 15:55:04.56: [29397]: <-- [9:AT+FRH=3\r]
> Dec 28 15:55:05.80: [29397]: --> [7:CONNECT]
> Dec 28 15:55:07.54: [29397]: --> [5:ERROR]

Again.

> Dec 28 15:55:08.98: [29397]: <-- [9:AT+FRH=3\r]
> Dec 28 15:55:11.53: [29397]: --> [7:CONNECT]
> Dec 28 15:55:12.16: [29397]: --> [5:ERROR]

All of that was probably the Phase C carrier still going, and the 
premature carrier loss was probably a disturbance in the audio.  If I 
were to guess I'd say that you were using a VoIP line, but I would say 
that this one log does indicate problems with the line audio quality.

There were some modifications to the HylaFAX+ Class 1 driver which may 
allow this to cope a bit better, but I couldn't guarantee that it would 
help.

Again.

Thanks,

Lee.


____________________ HylaFAX(tm) Users Mailing List _______________________
 To subscribe/unsubscribe, click http://lists.hylafax.org/cgi-bin/lsg2.cgi
On UNIX: mail -s unsubscribe hylafax-users-request@xxxxxxxxxxx < /dev/null
 *To learn about commercial HylaFAX(tm) support, mail sales@xxxxxxxxx*