Just in case, do you know what device is on the other end ? David Ponzone Direction Technique email: david.ponzone@ipeva.fr tel: 01 74 03 18 97 gsm: 06 66 98 76 34 Service Client IPeva tel: 0811 46 26 26 www.ipeva.fr - www.ipeva-studio.com Ce message et toutes les pièces jointes sont confidentiels et établis à l'intention exclusive de ses destinataires. Toute utilisation ou diffusion non autorisée est interdite. Tout message électronique est susceptible d'altération. IPeva décline toute responsabilité au titre de ce message s'il a été altéré, déformé ou falsifié. Si vous n'êtes pas destinataire de ce message, merci de le détruire immédiatement et d'avertir l'expéditeur. Le 15/06/2010 à 17:41, samuel a écrit :
I got a pcap file and after the T.38 renegotiation, wireshark reports T.38 Malformed packet from the "originator" A.B.C.D. It sends 3 of these packets and then stops. From freeswitch I just see "Unknown RTP version 0" packets going to A.B.C.D
I attach a png containing the wireshark malformed packet "capture"..apologies in advanced but it's a few Kb and it's the fastest way not to replace all "sensitive" information (IPs, hostnames,etc...). Hope it passes the list filter..
On 15 June 2010 17:12, Anthony Minessale <anthony.minessale@gmail.com> wrote: did you watch it in a pcap? Maybe it's one way audio.
On Tue, Jun 15, 2010 at 7:03 AM, samuel <samu60@gmail.com> wrote: hi all,
recently testing T.38 unsuccesfully with freeswitch head version (FreeSWITCH Version 1.0.head (git-) ) on a testing server (2.6.26-2- xen-amd64)
remote SDP:
v=0 o=root 6039 6040 IN IP4 A.B.C.D s=session c=IN IP4 A.B.C.D t=0 0 m=image 19423 udptl t38 a=T38FaxVersion:0 a=T38MaxBitRate:9600 a=T38FaxFillBitRemoval:0 a=T38FaxTranscodingMMR:0 a=T38FaxTranscodingJBIG:0 a=T38FaxRateManagement:transferredTCF a=T38FaxMaxBuffer:72 a=T38FaxMaxDatagram:72 a=T38FaxUdpEC:t38UDPRedundancy
freeswitch answer: v=0 o=FreeSWITCH 1276579579 1276579581 IN IP4 W.X.Y.Z s=FreeSWITCH c=IN IP4 W.X.Y.Z t=0 0 m=image 22230 udptl t38 a=T38FaxVersion:0 a=T38MaxBitRate:14400 a=T38FaxFillBitRemoval a=T38FaxRateManagement:transferredTCF a=T38FaxMaxBuffer:2000 a=T38FaxMaxDatagram:400 a=T38FaxUdpEC:t38UDPRedundancy a=T38VendorInfo:0 0 0
some debug: 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 T4 expired in phase T30_PHASE_B_RX, state 17 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Too many retries. Giving up. 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing from phase T30_PHASE_B_RX to T30_PHASE_D_TX 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set rx type 0 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set tx type 4 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing from state 17 to 3 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Tx: DCN with final frame tag 2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Tx: ff 13 fa 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Send complete in phase T30_PHASE_D_TX, state 3 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Send complete in phase T30_PHASE_D_TX, state 3 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Disconnecting 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing from phase T30_PHASE_D_TX to T30_PHASE_E 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set rx type 0 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set tx type 1 2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing from state 3 to 2 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Send complete in phase T30_PHASE_E, state 2 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:301 = = = = = = = = ====================================================================== 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:313 Fax processing not successful - result (48) Disconnected after permitted retries. 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:318 Remote station id: 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:319 Local station id: SpanDSP Fax Ident 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:320 Pages transferred: 0 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:322 Total fax pages: 0 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:323 Image resolution: 0x0 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:324 Transfer Rate: 14400 2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:326 ECM status off
I've starting learning about T3X and freswitch so I would like whether someone can point me to any doc or any configuration parameter that can solve the issue or at least debug it.
Thanks in advance,
Samuel
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