[hylafax-users] USR 33.6 External Receive Errors

Hello

Yes, I know that USR modems are bad (but that is all that I have for now). I have three different models, and each one has presented me with errors.

This post concerns the 33.6 External Faxmodem receiving FAXes from an HP T45xi FAX machine.

My predominant error goes something like (this could be after 1 page or 12 pages – I am using a 13 page test):

…

Dec 20 16:32:54.29: [ 2979]: RECV received frame number 4

Dec 20 16:32:54.50: [ 2979]: RECV received frame number 5

Dec 20 16:32:54.50: [ 2979]: RECV received RCP frame

Dec 20 16:32:54.61: [ 2979]: --> [10:NO CARRIER]

Dec 20 16:32:54.61: [ 2979]: <-- [9:AT+FRH=3\r]

Dec 20 16:32:54.72: [ 2979]: --> [7:CONNECT]

Dec 20 16:32:55.88: [ 2979]: --> [2:OK]

Dec 20 16:32:55.88: [ 2979]: RECV recv PPS (partial page signal)

Dec 20 16:32:55.88: [ 2979]: RECV recv MPS (more pages, same document)

Dec 20 16:32:55.88: [ 2979]: RECV received 6 frames of block 1 of page 9

Dec 20 16:32:55.88: [ 2979]: <-- [9:AT+FRS=7\r]

Dec 20 16:32:55.98: [ 2979]: --> [2:OK]

Dec 20 16:32:55.99: [ 2979]: RECV: 1383 bytes of data, 2192 total lines

Dec 20 16:32:55.99: [ 2979]: <-- [9:AT+FTH=3\r]

Dec 20 16:33:25.99: [ 2979]: MODEM <Timeout>

Dec 20 16:33:25.99: [ 2979]: RECV send MCF (message confirmation)

Dec 20 16:33:25.99: [ 2979]: RECV FAX (000000329): from 4146152434, page 9 in 0:41, INF, 7.7 line/mm, 2-D MMR, 14400 bit/s

Dec 20 16:33:25.99: [ 2979]: <-- data [3]

Dec 20 16:33:25.99: [ 2979]: <-- data [2]

Dec 20 16:33:28.54: [ 2979]: --> [5:ÿŒ

]

Dec 20 16:33:28.54: [ 2979]: <-- [11:AT+FRM=146\r]

Dec 20 16:33:28.78: [ 2979]: --> [10:AT+FRM=146]

Dec 20 16:33:28.78: [ 2979]: RECV FAX (000000329): from 4146152434, page 10 in 0:03, INF, 7.7 line/mm, 2-D MMR, 14400 bit/s

Dec 20 16:33:28.78: [ 2979]: RECV FAX (000000329): recvq/fax000000307.tif from 4146152434, route to <unspecified>, 10 pages in 2:34

Dec 20 16:33:28.78: [ 2979]: RECV FAX: Failed to properly detect high-speed data carrier.

Dec 20 16:33:28.78: [ 2979]: <-- [9:AT+FTH=3\r]

Dec 20 16:33:28.78: [ 2979]: --> [5:ERROR]

…

My config.ttyS0 file is the xonxoff default that installed with Hylafax (I have not tried a hardware flow control).

I did try disabling hardware FRS by changing:

Class1ResponseWaitCmd: AT+FRS=1 # wait after sending TCF for response

To:

Class1ResponseWaitCmd: "<delay\0727>" # wait after sending TCF for response

Which then mostly gave me these errors:

…

Dec 20 16:12:33.16: [ 2979]: RECV received frame number 61

Dec 20 16:12:33.31: [ 2979]: RECV received frame number 62

Dec 20 16:12:33.45: [ 2979]: RECV received frame number 63

Dec 20 16:12:33.59: [ 2979]: RECV received frame number 64

Dec 20 16:12:33.73: [ 2979]: RECV received frame number 65

Dec 20 16:12:33.87: [ 2979]: RECV assumed RCP frame with block end

Dec 20 16:12:33.98: [ 2979]: --> [10:NO CARRIER]

Dec 20 16:12:33.98: [ 2979]: <-- [9:AT+FRH=3\r]

Dec 20 16:12:40.98: [ 2979]: --> [0:]

Dec 20 16:12:40.98: [ 2979]: MODEM <Empty line>

Dec 20 16:12:40.98: [ 2979]: <-- data [1]

Dec 20 16:12:40.98: [ 2979]: --> [2:OK]

Dec 20 16:12:40.98: [ 2979]: RECV keeping unconfirmed page

Dec 20 16:12:41.12: [ 2979]: RECV: 16896 bytes of data, 1453 total lines

Dec 20 16:12:41.12: [ 2979]: RECV FAX (000000325): from 4146152434, page 3 in 0:20, INF, 7.7 line/mm, 2-D MMR, 14400 bit/s

Dec 20 16:12:41.12: [ 2979]: RECV FAX (000000325): recvq/fax000000303.tif from 4146152434, route to <unspecified>, 3 pages in 1:03

Dec 20 16:12:41.12: [ 2979]: RECV FAX: T.30 T2 timeout, expected signal not received

Dec 20 16:12:41.12: [ 2979]: <-- [9:AT+FTH=3\r]

Dec 20 16:12:41.16: [ 2979]: --> [7:CONNECT]

Dec 20 16:12:41.16: [ 2979]: <-- data [3]

Dec 20 16:12:41.16: [ 2979]: <-- data [2]

Dec 20 16:12:42.33: [ 2979]: --> [2:OK]

…

I have switched back to the “hardware” FRS setting, and now I am only receiving the “…failed to properly detect…” errors.

I tried making the modem 2.0, however, that took twice as long to receive, and the modem would often not pick up the incoming FAX call.

Does this look indeed to be the modem, or is there something else that I can try changing?

Thank you for your help!