[hylafax-users] Fwd: MultiTech No sender protocol (T.30 T1 timeout)

[Enrico Pala <enricopala@xxxxxxxxx>]

Hello everybody, first of all my apologies form my awful english.

The problem: I recently changed the fax board on my server fax (was using a MT5634ZPX-PCI-U, now using a MT9234ZPX-UPCI).
After this change I noticed a lot of T.30 T1 timeout errors (I append a log of the errors encountered at the end of the email). I used the same configuration on both fax boards, I report it below:

ModemType:              Class1.0        # use this to supply a hint
ModemRate:              57600           # must be at least as fast as the DCE-DCE communication
ModemFlowControl:       rtscts          # many firmwares have broken software flow control
Class1EnableV34Cmd:     AT+F34=14,1,2   # 33600-2400 primary, 2400-1200 control
Class1TMConnectDelay:   400             # counteract quick CONNECT response
Class1HasRHConnectBug:  yes             # cope with +FRH=3 CONNECT errors


Very simple... It is the default conf that Hylafax apply on class1.0 MT board I think.
I read some posts on this mailing list about the cause of these errors and I saw that the problem is often reconducted to the poor quality of the line and its excessive noise.
Is this that case too or could it be solved with some extra conf?
Have anyone had the same experience with this two fax boards?
If the problem does not rely on the configuration, do anyone knows if this problem is caused by some changes on the MT9234ZPX board, something at the electronic circuitry level (maybe input filters, amplifiers or something like that) that it could maybe be solved by adding some external stuff (filters or amplifiers)?

Any help would be really appreciated,
thanks in advance,
kind regards,

Enrico Pala.

Log file of the unsuccessful communication:

Feb 01 10:07:19.88: [ 2699]: HylaFAX (tm) Version 6.0.4
Feb 01 10:07:19.88: [ 2699]: DynamicConfig: bin/dynconf.php "/dev/ttyS2"
Feb 01 10:07:20.02: [ 2699]: <-- [4:ATA\r]
Feb 01 10:07:32.01: [ 2699]: --> [7:CONNECT]
Feb 01 10:07:32.01: [ 2699]: ANSWER: FAX CONNECTION  DEVICE '/dev/ttyS2'
Feb 01 10:07:32.01: [ 2699]: RECV FAX: begin
Feb 01 10:07:32.01: [ 2699]: <-- data [32]
Feb 01 10:07:32.01: [ 2699]: <-- data [2]
Feb 01 10:07:32.02: [ 2699]: --> [7:CONNECT]
Feb 01 10:07:32.02: [ 2699]: <-- data [23]
Feb 01 10:07:32.02: [ 2699]: <-- data [2]
Feb 01 10:07:32.03: [ 2699]: --> [7:CONNECT]
Feb 01 10:07:32.03: [ 2699]: <-- data [13]
Feb 01 10:07:32.03: [ 2699]: <-- data [2]
Feb 01 10:07:34.31: [ 2699]: --> [2:OK]
Feb 01 10:07:34.31: [ 2699]: <-- [9:AT+FRH=3\r]
Feb 01 10:07:41.31: [ 2699]: --> [0:]
Feb 01 10:07:41.31: [ 2699]: MODEM <Empty line>
Feb 01 10:07:41.31: [ 2699]: <-- data [1]
Feb 01 10:07:41.31: [ 2699]: --> [2:^P^C]
Feb 01 10:07:41.31: [ 2699]: --> [2:OK]
Feb 01 10:07:41.31: [ 2699]: <-- [9:AT+FRS=7\r]
Feb 01 10:07:41.57: [ 2699]: --> [2:OK]
Feb 01 10:07:41.57: [ 2699]: <-- [9:AT+FTH=3\r]
Feb 01 10:07:42.52: [ 2699]: --> [7:CONNECT]
Feb 01 10:07:42.52: [ 2699]: <-- data [32]
Feb 01 10:07:42.52: [ 2699]: <-- data [2]
Feb 01 10:07:42.54: [ 2699]: --> [7:CONNECT]
Feb 01 10:07:42.54: [ 2699]: <-- data [23]
Feb 01 10:07:42.54: [ 2699]: <-- data [2]
Feb 01 10:07:42.55: [ 2699]: --> [7:CONNECT]
Feb 01 10:07:42.55: [ 2699]: <-- data [13]
Feb 01 10:07:42.55: [ 2699]: <-- data [2]
Feb 01 10:07:44.83: [ 2699]: --> [2:OK]
Feb 01 10:07:44.83: [ 2699]: <-- [9:AT+FRH=3\r]
Feb 01 10:07:51.83: [ 2699]: --> [0:]
Feb 01 10:07:51.83: [ 2699]: MODEM <Empty line>
Feb 01 10:07:51.83: [ 2699]: <-- data [1]
Feb 01 10:07:51.83: [ 2699]: --> [2:^P^C]
Feb 01 10:07:51.83: [ 2699]: --> [2:OK]
Feb 01 10:07:51.83: [ 2699]: <-- [9:AT+FRS=7\r]
Feb 01 10:07:51.99: [ 2699]: --> [2:OK]
Feb 01 10:07:51.99: [ 2699]: <-- [9:AT+FTH=3\r]
Feb 01 10:07:52.95: [ 2699]: --> [7:CONNECT]
Feb 01 10:07:52.95: [ 2699]: <-- data [32]
Feb 01 10:07:52.95: [ 2699]: <-- data [2]
Feb 01 10:07:52.96: [ 2699]: --> [7:CONNECT]
Feb 01 10:07:52.96: [ 2699]: <-- data [23]
Feb 01 10:07:52.96: [ 2699]: <-- data [2]
Feb 01 10:07:52.97: [ 2699]: --> [7:CONNECT]
Feb 01 10:07:52.97: [ 2699]: <-- data [13]
Feb 01 10:07:52.97: [ 2699]: <-- data [2]
Feb 01 10:07:55.25: [ 2699]: --> [2:OK]
Feb 01 10:07:55.25: [ 2699]: <-- [9:AT+FRH=3\r]
Feb 01 10:08:02.25: [ 2699]: --> [0:]
Feb 01 10:08:02.25: [ 2699]: MODEM <Empty line>
Feb 01 10:08:02.25: [ 2699]: <-- data [1]
Feb 01 10:08:02.26: [ 2699]: --> [2:^P^C]
Feb 01 10:08:02.26: [ 2699]: --> [2:OK]
Feb 01 10:08:02.26: [ 2699]: <-- [9:AT+FRS=7\r]
Feb 01 10:08:02.33: [ 2699]: --> [2:OK]
Feb 01 10:08:02.33: [ 2699]: <-- [9:AT+FTH=3\r]
Feb 01 10:08:03.29: [ 2699]: --> [7:CONNECT]
Feb 01 10:08:03.29: [ 2699]: <-- data [32]
Feb 01 10:08:03.29: [ 2699]: <-- data [2]
Feb 01 10:08:03.30: [ 2699]: --> [7:CONNECT]
Feb 01 10:08:03.30: [ 2699]: <-- data [23]
Feb 01 10:08:03.30: [ 2699]: <-- data [2]
Feb 01 10:08:03.31: [ 2699]: --> [7:CONNECT]
Feb 01 10:08:03.31: [ 2699]: <-- data [13]
Feb 01 10:08:03.31: [ 2699]: <-- data [2]
Feb 01 10:08:05.59: [ 2699]: --> [2:OK]
Feb 01 10:08:05.59: [ 2699]: <-- [9:AT+FRH=3\r]
Feb 01 10:08:12.59: [ 2699]: --> [0:]
Feb 01 10:08:12.59: [ 2699]: MODEM <Empty line>
Feb 01 10:08:12.59: [ 2699]: <-- data [1]
Feb 01 10:08:12.59: [ 2699]: --> [2:^P^C]
Feb 01 10:08:12.59: [ 2699]: --> [2:OK]
Feb 01 10:08:12.59: [ 2699]: RECV FAX: No sender protocol (T.30 T1 timeout)
Feb 01 10:08:12.59: [ 2699]: RECV FAX: end
Feb 01 10:08:12.59: [ 2699]: No sender protocol (T.30 T1 timeout)
Feb 01 10:08:12.59: [ 2699]: SESSION END

Attachment: timeout_issue.rtf
Description: RTF file