Fax receiving problem - receives just one page

Hi all,

I am testing fax sending and receiving in order to decide if the Fax Pro module is the right decision for our company. I am using Centos 6.5, Asterisk 11.13 and FreePBX 2.5. Through the FreePBX interface I installed Digium free fax license. In general, sending is working fine, but I have problems with fax receiving. Besides the fax is not sent to email (I configured postfix settings), I can not receive more than one page ? It looks like Asterisk hangup in the middle of fax session (after the first page). Any ideas?

 Goto (ext-fax,101,1)
    -- Executing [101@ext-fax:1] Set("SIP/myprovider-trunk-0000004c", "FAX_FOR=Robert (101)") in new stack
    -- Executing [101@ext-fax:2] NoOp("SIP/myprovider-trunk-0000004c", "Receiving Fax for: Robert (101), From: "01234567906" <01234567906>") in new stack
    -- Executing [101@ext-fax:3] Set("SIP/myprovider-trunk-0000004c", "FAX_ATTACH_FORMAT=both") in new stack
    -- Executing [101@ext-fax:4] Set("SIP/myprovider-trunk-0000004c", "FAX_RX_EMAIL=myemail@mydomain") in new stack
    -- Executing [101@ext-fax:5] Goto("SIP/myprovider-trunk-0000004c", "s,receivefax") in new stack
    -- Goto (ext-fax,s,3)
    -- Executing [s@ext-fax:3] StopPlayTones("SIP/myprovider-trunk-0000004c", "") in new stack
    -- Executing [s@ext-fax:4] ReceiveFAX("SIP/myprovider-trunk-0000004c", "/var/spool/asterisk/fax/1441281211.140.tif,f") in new stack
    -- Channel 'SIP/myprovider-trunk-0000004c' receiving FAX '/var/spool/asterisk/fax/1441281211.140.tif'
  == Using UDPTL TOS bits 184
  == Using UDPTL CoS mark 5
  == Spawn extension (ext-fax, s, 4) exited non-zero on 'SIP/myprovider-trunk-0000004c'
    -- Executing [h@ext-fax:1] GotoIf("SIP/myprovider-trunk-0000004c", "1?failed") in new stack
    -- Goto (ext-fax,h,103)
    -- Executing [h@ext-fax:103] NoOp("SIP/myprovider-trunk-0000004c", "FAX FAILED for: myemail@mydomain , From: "01234567906" <01234567906>") in new stack
    -- Executing [h@ext-fax:104] Macro("SIP/myprovider-trunk-0000004c", "hangupcall,") in new stack
    -- Executing [s@macro-hangupcall:1] ExecIf("SIP/myprovider-trunk-0000004c", "0?Set(CDR(recordingfile)=.wav)") in new stack
    -- Executing [s@macro-hangupcall:2] GotoIf("SIP/myprovider-trunk-0000004c", "1?theend") in new stack
    -- Goto (macro-hangupcall,s,4)
    -- Executing [s@macro-hangupcall:4] Hangup("SIP/myprovider-trunk-0000004c", "") in new stack
  == Spawn extension (macro-hangupcall, s, 4) exited non-zero on 'SIP/myprovider-trunk-0000004c' in macro 'hangupcall'
  == Spawn extension (ext-fax, h, 104) exited non-zero on 'SIP/myprovider-trunk-0000004c'