flexfax: error code 5

["Ingenieurbro Brandes GbR" <marko.brandes@gmx.de>]

Hi folks,

i'm running a hylafax-server on my linux box.
I'm able to send fax to some numbers, but on most numbers i get
following message:


------------------------------------------------------------------------

 Jan 18 19:13:06.16: [27803]: SESSION BEGIN 00000097 49306568233
 Jan 18 19:13:06.16: [27803]: SEND FAX: JOB 55 DEST 6568233 COMMID
00000097
 Jan 18 19:13:06.16: [27803]: DELAY 2600 ms
 Jan 18 19:13:08.77: [27803]: <-- [15:ATE0V1Q0S0=0H0\r]
 Jan 18 19:13:08.91: [27803]: --> [2:OK]
 Jan 18 19:13:08.91: [27803]: <-- [21:ATS8=2S7=60&H2&D2&C1\r]
 Jan 18 19:13:09.05: [27803]: --> [2:OK]
 Jan 18 19:13:09.05: [27803]: <-- [14:AT+FCLASS=2.0\r]
 Jan 18 19:13:09.19: [27803]: --> [2:OK]
 Jan 18 19:13:09.19: [27803]: <-- [9:AT+FLO=1\r]
 Jan 18 19:13:09.33: [27803]: --> [2:OK]
 Jan 18 19:13:09.33: [27803]: <-- [9:AT+FPP=0\r]
 Jan 18 19:13:09.47: [27803]: --> [2:OK]
 Jan 18 19:13:09.47: [27803]: <-- [9:AT+FBO=0\r]
 Jan 18 19:13:09.61: [27803]: --> [2:OK]
 Jan 18 19:13:09.61: [27803]: <-- [10:AT+FCT=30\r]
 Jan 18 19:13:09.75: [27803]: --> [2:OK]
 Jan 18 19:13:09.75: [27803]: <-- [15:AT+FNR=1,1,1,1\r]
 Jan 18 19:13:09.89: [27803]: --> [2:OK]
 Jan 18 19:13:09.89: [27803]: <-- [9:AT+FIE=0\r]
 Jan 18 19:13:10.03: [27803]: --> [2:OK]
 Jan 18 19:13:10.03: [27803]: <-- [23:AT+FCC=1,5,2,2,0,0,0,0\r]
 Jan 18 19:13:10.17: [27803]: --> [2:OK]
 Jan 18 19:13:10.17: [27803]: <-- [7:ATL0M1\r]
 Jan 18 19:13:10.30: [27803]: --> [2:OK]
 Jan 18 19:13:10.30: [27803]: <-- [14:AT+FCLASS=2.0\r]
 Jan 18 19:13:10.54: [27803]: --> [2:OK]
 Jan 18 19:13:10.54: [27803]: <-- [9:AT+FLO=1\r]
 Jan 18 19:13:10.78: [27803]: --> [2:OK]
 Jan 18 19:13:10.78: [27803]: <-- [9:AT+FPP=0\r]
 Jan 18 19:13:11.02: [27803]: --> [2:OK]
 Jan 18 19:13:11.02: [27803]: <-- [9:AT+FBO=0\r]
 Jan 18 19:13:11.26: [27803]: --> [2:OK]
 Jan 18 19:13:11.26: [27803]: <-- [10:AT+FCT=30\r]
 Jan 18 19:13:11.50: [27803]: --> [2:OK]
 Jan 18 19:13:11.50: [27803]: <-- [15:AT+FNR=1,1,1,1\r]
 Jan 18 19:13:11.74: [27803]: --> [2:OK]
 Jan 18 19:13:11.74: [27803]: <-- [9:AT+FIE=0\r]
 Jan 18 19:13:11.98: [27803]: --> [2:OK]
 Jan 18 19:13:11.98: [27803]: <-- [23:AT+FCC=1,5,2,2,0,0,0,0\r]
 Jan 18 19:13:12.22: [27803]: --> [2:OK]
 Jan 18 19:13:12.22: [27803]: <-- [30:AT+FLI="Ingenieurbuero Brand"\r]
 Jan 18 19:13:12.46: [27803]: --> [2:OK]
 Jan 18 19:13:12.51: [27803]: DIAL 6568233
 Jan 18 19:13:12.51: [27803]: <-- [12:ATDT6568233\r]
 Jan 18 19:13:12.63: [27803]: --> [5:ERROR]
 Jan 18 19:13:12.63: [27803]: SEND FAILED: Invalid dialing command
 Jan 18 19:13:12.63: [27803]: <-- [5:ATH0\r]
 Jan 18 19:13:12.86: [27803]: --> [2:OK]
 Jan 18 19:13:12.86: [27803]: SESSION END

Can anybody help me with this error.
Where can i find a complete list of error codes?

Thanks in advance ...... Marko