unable to send fax

HI!I can not realize which kind of error I get.Hope you can help to undesrtand
Thank you!Ciaoo Ema
mepis 3.3.1

efax: Mon Jun 27 07:27:07 2005 efax v 0.9a-001114 Copyright 1999 Ed Casas
efax: 27:07 compiled Dec 2 2004 14:28:56
efax: 27:07 TIFF version 4.2 file (little-endian)
efax: 27:07 TIFF directory at 8 with 20 tags, last image.
efax: 27:07 page 1 : /tmp/kde-anticopozzo/kdeprint_k5EmTLga.001 + 338 : 1728x2292 @ 204x196 dpi TIFF/FAX
efax: 27:07 argv[0]=efax
efax: 27:07 argv[1]=-v
efax: 27:07 argv[2]=ewin
efax: 27:07 argv[3]=-v
efax: 27:07 argv[4]=chewmainrxtf
efax: 27:07 argv[5]=-d/dev/modem
efax: 27:07 argv[6]=-x
efax: 27:07 argv[7]=/var/lock/LCK..modem
efax: 27:07 argv[8]=-iZ
efax: 27:07 argv[9]=-i&FE&D2S7=120
efax: 27:07 argv[10]=-i&C0
efax: 27:07 argv[11]=-iM1L0
efax: 27:07 argv[12]=-l
efax: 27:07 argv[13]=+1 800 555 5555
efax: 27:07 argv[14]=-kZ
efax: 27:07 argv[15]=-h
efax: 27:07 argv[16]=2005/06/27 07:27 +1 800 555 5555 anticopozzo p. %d/%d
efax: 27:07 argv[17]=-t
efax: 27:07 argv[18]=T0577940113
efax: 27:07 argv[19]=/tmp/kde-anticopozzo/kdeprint_k5EmTLga.001
efax: 27:07 created text lock file /var/lock/LCK..modem
efax: 27:07 opened /dev/modem
efax: 27:07 command "Q0V1"
efax: 27:07 waiting 2,0 s
efax: 27:07 .186 [ATQ0V1]
efax: 27:07 .191 [OK]
efax: 27:07 response "OK"
efax: 27:07 command "Z"
efax: 27:07 waiting 5,0 s
efax: 27:07 .296 [ATZ]
efax: 27:07 .303 [OK]
efax: 27:07 response "OK"
efax: 27:07 command "&FE&D2S7=120"
efax: 27:07 waiting 5,0 s
efax: 27:07 .409 [AT&FE&D2S7=120]
efax: 27:07 .421 [OK]
efax: 27:07 response "OK"
efax: 27:07 command "&C0"
efax: 27:07 waiting 5,0 s
efax: 27:07 .531 [OK]
efax: 27:07 response "OK"
efax: 27:07 command "M1L0"
efax: 27:07 waiting 5,0 s
efax: 27:07 .642 [OK]
efax: 27:07 response "OK"
efax: 27:07 command "E0"
efax: 27:07 waiting 5,0 s
efax: 27:07 .752 [OK]
efax: 27:07 response "OK"
efax: 27:07 command "I3"
efax: 27:07 waiting 5,0 s
efax: 27:07 .860 [Version 1.11 / 17.09.2001]
efax: 27:07 .873 [OK]
efax: 27:07 response "OK"
efax: 27:07 command "+FCLASS=?"
efax: 27:07 waiting 5,0 s
efax: 27:07 .988 [0,1,1.0,8,8.0]
efax: 27:07 .998 [OK]
efax: 27:07 response "OK"
efax: 27:08 command "+FCLASS=1"
efax: 27:08 waiting 5,0 s
efax: 27:08 .112 [OK]
efax: 27:08 response "OK"
efax: 27:08 using Version 1.11 / 17.09.2001 in class 1
efax: 27:08 command "+FTM=?"
efax: 27:08 waiting 5,0 s
efax: 27:08 .223 [(3,24,48,72,73,74,96,97,98,121,122,145,146)]
efax: 27:08 .244 [OK]
efax: 27:08 response "OK"
efax: 27:08 dialing T0577940113
efax: 27:08 command "DT0577940113"
efax: 27:08 waiting 120,0 s
efax: 29:08 Error: dial command failed
efax: 29:08 failed -> /tmp/kde-anticopozzo/kdeprint_k5EmTLga.001
efax: 29:08 command "Q0V1"
efax: 29:08 waiting 2,0 s
efax: 29:08 .534 [OK]
efax: 29:08 response "OK"
efax: 29:08 command "Z"
efax: 29:08 waiting 5,0 s
efax: 29:08 .645 [OK]
efax: 29:08 response "OK"
efax: 29:08 read HDB pid 5570 [ 5570] from /var/lock/LCK..modem (our pid)
efax: 29:08 removed lock file /var/lock/LCK..modem
efax: 29:08 done, returning 2 (unrecoverable error)