[hylafax-users] Too often COMREC invalid response received error

I have just setup a new faxserver on RH8.0 with hylafax-4.1.8-1rh8.i386.rpm running on a multitech PCI internal modem in class 1.

About 2 of every 3 fax reception fails with an “COMREC invalid response received” error.

Flow control is rtscts.

What could be the problem?

Here is the session log for a failed fax reception

Dec 16 15:18:34.93: [ 1156]: SESSION BEGIN 000000067 902122920744

Dec 16 15:18:34.93: [ 1156]: HylaFAX (tm) Version 4.1.8

Dec 16 15:18:34.93: [ 1156]: <-- [4:ATA\r]

Dec 16 15:18:43.92: [ 1156]: --> [7:CONNECT]

Dec 16 15:18:43.92: [ 1156]: ANSWER: FAX CONNECTION DEVICE '/dev/ttyS4'

Dec 16 15:18:43.92: [ 1156]: STATE CHANGE: ANSWERING -> RECEIVING

Dec 16 15:18:43.92: [ 1156]: MODEM input buffering enabled

Dec 16 15:18:43.92: [ 1156]: RECV FAX: begin

Dec 16 15:18:43.93: [ 1156]: MODEM input buffering disabled

Dec 16 15:18:43.93: [ 1156]: <-- HDLC<23:FF C0 02 4E A6 6E 4E A6 CE 1E 86 62 04 A6 36 A6 46 96 D2 04 04 04 04>

Dec 16 15:18:43.93: [ 1156]: <-- data [23]

Dec 16 15:18:43.93: [ 1156]: <-- data [2]

Dec 16 15:18:43.93: [ 1156]: --> [7:CONNECT]

Dec 16 15:18:43.93: [ 1156]: <-- HDLC<10:FF C8 01 00 77 5F 01 79 03 C0>

Dec 16 15:18:43.93: [ 1156]: <-- data [10]

Dec 16 15:18:43.93: [ 1156]: <-- data [2]

Dec 16 15:18:45.14: [ 1156]: --> [2:OK]

Dec 16 15:18:45.14: [ 1156]: <-- [9:AT+FRH=3\r]

Dec 16 15:18:45.68: [ 1156]: --> [7:CONNECT]

Dec 16 15:18:47.36: [ 1156]: --> HDLC<25:FF C0 C2 8C 8C 8C 2C 8C 2C 6C 04 4C 6C 4C 04 0C 9C 04 04 04 04 04 04 AC 6D>

Dec 16 15:18:47.36: [ 1156]: --> [2:OK]

Dec 16 15:18:47.36: [ 1156]: REMOTE TSI "90 262 6414111"

Dec 16 15:18:47.36: [ 1156]: <-- [9:AT+FRH=3\r]

Dec 16 15:18:47.37: [ 1156]: --> [7:CONNECT]

Dec 16 15:18:47.63: [ 1156]: --> HDLC<9:FF C8 C1 00 45 1F 00 64 CB>

Dec 16 15:18:47.63: [ 1156]: --> [2:OK]

Dec 16 15:18:47.63: [ 1156]: REMOTE wants 14400 bit/s

Dec 16 15:18:47.63: [ 1156]: REMOTE wants page width 1728 pixels in 215 mm

Dec 16 15:18:47.64: [ 1156]: REMOTE wants unlimited page length

Dec 16 15:18:47.64: [ 1156]: REMOTE wants 3.85 line/mm

Dec 16 15:18:47.64: [ 1156]: REMOTE wants 2-D MR

Dec 16 15:18:47.64: [ 1156]: <-- [9:AT+FRH=3\r]

Dec 16 15:18:47.64: [ 1156]: --> [7:CONNECT]

Dec 16 15:18:47.75: [ 1156]: --> [10:NO CARRIER]

Dec 16 15:18:47.75: [ 1156]: RECV training at v.17 14400 bit/s

Dec 16 15:18:47.75: [ 1156]: <-- [11:AT+FRM=145\r]

Dec 16 15:18:47.86: [ 1156]: --> [8:+FCERROR]

Dec 16 15:18:47.86: [ 1156]: <-- [11:AT+FRM=145\r]

Dec 16 15:18:49.45: [ 1156]: --> [7:CONNECT]

Dec 16 15:18:50.97: [ 1156]: RECV: TCF 2720 bytes, 0% non-zero, 2699 zero-run

Dec 16 15:18:50.97: [ 1156]: --> [10:NO CARRIER]

Dec 16 15:18:50.97: [ 1156]: DELAY 75 ms

Dec 16 15:18:51.05: [ 1156]: TRAINING succeeded

Dec 16 15:18:51.05: [ 1156]: <-- [9:AT+FTH=3\r]

Dec 16 15:18:51.90: [ 1156]: --> [7:CONNECT]

Dec 16 15:18:51.90: [ 1156]: <-- HDLC<3:FF C8 21>

Dec 16 15:18:51.90: [ 1156]: <-- data [3]

Dec 16 15:18:51.90: [ 1156]: <-- data [2]

Dec 16 15:18:52.23: [ 1156]: --> [2:OK]

Dec 16 15:18:52.23: [ 1156]: MODEM input buffering enabled

Dec 16 15:18:52.23: [ 1156]: <-- [11:AT+FRM=146\r]

Dec 16 15:18:52.87: [ 1156]: --> [8:+FCERROR]

Dec 16 15:18:52.87: [ 1156]: MODEM input buffering disabled

Dec 16 15:18:52.87: [ 1156]: <-- [9:AT+FRH=3\r]

Dec 16 15:18:53.37: [ 1156]: --> [7:CONNECT]

Dec 16 15:18:53.69: [ 1156]: --> [10:NO CARRIER]

Dec 16 15:18:53.69: [ 1156]: MODEM No carrier

Dec 16 15:18:53.69: [ 1156]: MODEM input buffering enabled

Dec 16 15:18:53.69: [ 1156]: <-- [11:AT+FRM=146\r]

Dec 16 15:19:00.41: [ 1156]: --> [8:+FCERROR]

Dec 16 15:19:00.41: [ 1156]: MODEM input buffering disabled

Dec 16 15:19:00.41: [ 1156]: <-- [9:AT+FRH=3\r]

Dec 16 15:19:00.50: [ 1156]: --> [7:CONNECT]

Dec 16 15:19:01.46: [ 1156]: --> HDLC<5:FF C8 F4 CC 66>

Dec 16 15:19:01.46: [ 1156]: --> [2:OK]

Dec 16 15:19:01.46: [ 1156]: RECV recv EOP (no more pages or documents)

Dec 16 15:19:01.46: [ 1156]: RECV FAX (000000067): recvq/fax000000035.tif from 90 262 6414111, route to <unspecified>, 0 pages in 0:18

Dec 16 15:19:01.46: [ 1156]: RECV FAX: COMREC invalid response received

Dec 16 15:19:01.46: [ 1156]: <-- [9:AT+FTH=3\r]

Dec 16 15:19:02.32: [ 1156]: --> [7:CONNECT]

Dec 16 15:19:02.32: [ 1156]: <-- HDLC<3:FF C8 5F>

Dec 16 15:19:02.32: [ 1156]: <-- data [3]

Dec 16 15:19:02.32: [ 1156]: <-- data [2]

Dec 16 15:19:02.64: [ 1156]: --> [2:OK]

Dec 16 15:19:02.64: [ 1156]: MODEM input buffering enabled

Dec 16 15:19:02.64: [ 1156]: RECV FAX (000000067): session with 90 262 6414111 terminated abnormally: COMREC invalid response received

Dec 16 15:19:02.64: [ 1156]: RECV FAX: bin/faxrcvd "recvq/fax000000035.tif" "ttyS4" "000000067" "COMREC invalid response received" "" ""

Dec 16 15:19:03.92: [ 1156]: RECV FAX: end

Dec 16 15:19:03.92: [ 1156]: SESSION END