FreeSWITCH

T.38 fail with Audiocodes MP-114

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Minor Minor
  • Resolution: Fixed
  • Affects Version/s: 1.0.7
  • Fix Version/s: None
  • Component/s: mod_spandsp
  • Labels:
    None
  • Environment:
    CentOS 5.5 amd64
  • Platform:
    Linux x86/gcc
  • Uname:
    Linux ipats.tagnet.ru 2.6.18-194.17.4.el5 #1 SMP Mon Oct 25 15:50:53 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
  • CPU Info:
    Hide
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 6
    model : 23
    model name : Intel(R) Core(TM)2 Duo CPU E7200 @ 2.53GHz
    stepping : 6
    cpu MHz : 1596.000
    cache size : 3072 KB
    physical id : 0
    siblings : 2
    core id : 0
    cpu cores : 2
    apicid : 0
    fpu : yes
    fpu_exception : yes
    cpuid level : 10
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc
     pni monitor ds_cpl est tm2 ssse3 cx16 xtpr sse4_1 lahf_lm
    bogomips : 5066.66
    clflush size : 64
    cache_alignment : 64
    address sizes : 36 bits physical, 48 bits virtual
    power management:

    processor : 1
    vendor_id : GenuineIntel
    cpu family : 6
    model : 23
    model name : Intel(R) Core(TM)2 Duo CPU E7200 @ 2.53GHz
    stepping : 6
    cpu MHz : 1596.000
    cache size : 3072 KB
    physical id : 0
    siblings : 2
    core id : 1
    cpu cores : 2
    apicid : 1
    fpu : yes
    fpu_exception : yes
    cpuid level : 10
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
    pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc
     pni monitor ds_cpl est tm2 ssse3 cx16 xtpr sse4_1 lahf_lm
    bogomips : 5066.54
    clflush size : 64
    cache_alignment : 64
    address sizes : 36 bits physical, 48 bits virtual
    power management:
    Show
    processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Core(TM)2 Duo CPU E7200 @ 2.53GHz stepping : 6 cpu MHz : 1596.000 cache size : 3072 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc  pni monitor ds_cpl est tm2 ssse3 cx16 xtpr sse4_1 lahf_lm bogomips : 5066.66 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Core(TM)2 Duo CPU E7200 @ 2.53GHz stepping : 6 cpu MHz : 1596.000 cache size : 3072 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc  pni monitor ds_cpl est tm2 ssse3 cx16 xtpr sse4_1 lahf_lm bogomips : 5066.54 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management:
  • GCC Version:
    Using built-in specs. Target: x86_64-redhat-linux Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --di
  • FreeSWITCH GIT Revision:
    git-062f07f 2011-07-16 12-35-25 +0200
  • Reproduced with GIT HEAD?:
    Yes
  • lsb_release:
    Hide
    LSB Version: :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch
    Distributor ID: CentOS
    Description: CentOS release 5.5 (Final)
    Release: 5.5
    Codename: Final
    Show
    LSB Version: :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch Distributor ID: CentOS Description: CentOS release 5.5 (Final) Release: 5.5 Codename: Final

Description

I have troubles with sendix faxes using T.38 with FreeSwitch and Audiocodes MP-114 device. After a long tests I collected tcpdumps for good and bad T.38 sessions. I found that bad session are when FreeSwitch 'forgots' to send 200 OK message to ReINVITE SDP message. I attached two dumps collected with Wireshark.
  1. File
    fax.dmp
    21/Jul/11 1:01 PM
    118 kB
    Boris Kovalenko
  2. File
    fax-good.dmp
    21/Jul/11 1:01 PM
    233 kB
    Boris Kovalenko

Activity

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Boris Kovalenko added a comment -
fax.dmp - fax session fails
fax-good.dmp - fax success

Dumps produced by Linux tcpdump
Show
Boris Kovalenko added a comment - fax.dmp - fax session fails fax-good.dmp - fax success Dumps produced by Linux tcpdump
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Jeff Lenk added a comment -
please test this with git head and close if fixed
Show
Jeff Lenk added a comment - please test this with git head and close if fixed
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Permalink
Boris Kovalenko added a comment -
Thank You! It's fixed.
Show
Boris Kovalenko added a comment - Thank You! It's fixed.
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Permalink
Boris Kovalenko added a comment -
Thank You! I got 10/10 faxes received even at 14400 bps! Nice work!
Show
Boris Kovalenko added a comment - Thank You! I got 10/10 faxes received even at 14400 bps! Nice work!

People

  • Assignee:
    Anthony Minessale II
    Reporter:
    Boris Kovalenko
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Dates

  • Created:
    Updated:
    Resolved: