flexfax: DCE to DTE data underflow

[Erwin Kaiser <ekaiser@snafu.de>]

I apologize for posting my question once more but I still cannot send
faxes. When I try I get the error message quoted in the subject.

I suppose there is some information in /var/log/messages which I don't
understand so I quote:

Dec 15 14:45:50 eins FaxGetty[7660]: MODEM input buffering disabled
Dec 15 14:46:11 eins FaxQueuer[7647]: JOB 13 (active dest +49302155509 pri 125 tts 0:00 killtime 2:49:03): CMD START /usr/lib/fax/faxsend -m ttyS1 sendq/q13 (PID 7661)
Dec 15 14:46:11 eins FaxSend[7661]: MODEM set DTR OFF
Dec 15 14:46:11 eins FaxSend[7661]: DELAY 2600 ms
Dec 15 14:46:13 eins FaxSend[7661]: MODEM set DTR ON
Dec 15 14:46:13 eins FaxSend[7661]: MODEM set baud rate: 19200 baud, input flow NONE, output flow NONE
Dec 15 14:46:13 eins FaxSend[7661]: MODEM flush i/o
Dec 15 14:46:13 eins FaxSend[7661]: <-- [15:ATE0V1Q0S0=0H0\r]
Dec 15 14:46:13 eins FaxGetty[7660]: ANSWER: Can not lock modem device
Dec 15 14:46:14 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:14 eins FaxSend[7661]: <-- [12:ATS8=2S7=60\r]
Dec 15 14:46:14 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:14 eins FaxSend[7661]: <-- [12:AT+FCLASS=?\r]
Dec 15 14:46:14 eins FaxSend[7661]: --> [19:0,1,1.0,2,2.0,8,8.0]
Dec 15 14:46:14 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:14 eins FaxSend[7661]: <-- [14:AT+FCLASS=2.0\r]
Dec 15 14:46:14 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:14 eins FaxSend[7661]: <-- [8:AT+FMI?\r]
Dec 15 14:46:14 eins FaxSend[7661]: --> [33:+FMI: "ELSA AG, Aachen (Germany)"]
Dec 15 14:46:14 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:14 eins FaxSend[7661]: <-- [8:AT+FMM?\r]
Dec 15 14:46:14 eins FaxSend[7661]: --> [21:+FMM: "MicroLink 56k"]
Dec 15 14:46:14 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:14 eins FaxSend[7661]: <-- [8:AT+FMR?\r]
Dec 15 14:46:14 eins FaxSend[7661]: --> [33:+FMR: "Version 1.51 / 16.09.1998"]
Dec 15 14:46:14 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:14 eins FaxSend[7661]: <-- [9:AT+FCC=?\r]
Dec 15 14:46:15 eins FaxSend[7661]: --> [45:(0,1),(0-5),(0-2),(0-2),(0),(0),(0),(0-7),(0)]
Dec 15 14:46:15 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:15 eins FaxSend[7661]: <-- [9:AT+FCQ=?\r]
Dec 15 14:46:15 eins FaxSend[7661]: --> [11:(0-2),(0-2)]
Dec 15 14:46:15 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:15 eins FaxSend[7661]: <-- [9:AT+FAP=?\r]
Dec 15 14:46:15 eins FaxSend[7661]: --> [17:(0,1),(0,1),(0,1)]
Dec 15 14:46:15 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:15 eins FaxSend[7661]: <-- [9:AT+FSP=?\r]
Dec 15 14:46:15 eins FaxSend[7661]: --> [5:(0,1)]
Dec 15 14:46:15 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:15 eins FaxSend[7661]: <-- [14:AT+FCLASS=2.0\r]
Dec 15 14:46:15 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:15 eins FaxSend[7661]: <-- [9:AT+FLO=0\r]
Dec 15 14:46:15 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:15 eins FaxSend[7661]: <-- [9:AT+FPP=0\r]
Dec 15 14:46:15 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:15 eins FaxSend[7661]: <-- [9:AT+FBO=0\r]
Dec 15 14:46:15 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:15 eins FaxSend[7661]: <-- [10:AT+FCT=30\r]
Dec 15 14:46:16 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:16 eins FaxSend[7661]: <-- [15:AT+FNR=1,1,1,1\r]
Dec 15 14:46:16 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:16 eins FaxSend[7661]: <-- [7:AT+FAP\r]
Dec 15 14:46:16 eins FaxSend[7661]: --> [5:ERROR]
Dec 15 14:46:16 eins FaxSend[7661]: MODEM Command error
Dec 15 14:46:16 eins FaxSend[7661]: <-- [9:AT+FIE=0\r]
Dec 15 14:46:16 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:16 eins FaxSend[7661]: <-- [23:AT+FCC=1,5,2,2,0,0,0,0\r]
Dec 15 14:46:16 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:16 eins FaxSend[7661]: MODEM +FMI: "ELSA AG, AACHEN (GERMANY)" +FMM: "MicroLink 56k"/+FMR: "Version 1.51 / 16.09.1998"
Dec 15 14:46:16 eins FaxSend[7661]: <-- [5:ATM0\r]
Dec 15 14:46:16 eins FaxSend[7661]: --> [2:OK]
Dec 15 14:46:16 eins FaxSend[7661]: MODEM input buffering disabled
Dec 15 14:46:16 eins FaxSend[7661]: SEND FAX: JOB 13 DEST 2155509 COMMID 00000063
Dec 15 14:47:51 eins FaxQueuer[7647]: JOB 13 (active dest +49302155509 pri 125 tts 0:00 killtime 2:47:23): CMD DONE: exit status 0
Dec 15 14:47:51 eins FaxQueuer[7647]: JOB 13 (sleeping dest +49302155509 pri 124 tts 0:00 killtime 2:47:23): SEND INCOMPLETE: requeue for 4:59; DTE to DCE data underflow
Dec 15 14:48:01 eins FaxQueuer[7647]: KILL JOB 13
Dec 15 14:48:02 eins FaxQueuer[7647]: NOTIFY: bin/notify "doneq/q13" "killed" "

TIA 

...............Erwin