hi all,<br><br>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)<br><br>remote SDP:<br><br>v=0<br>o=root 6039 6040 IN IP4 A.B.C.D<br>
s=session<br>c=IN IP4 A.B.C.D<br>t=0 0<br>m=image 19423 udptl t38<br>a=T38FaxVersion:0<br>a=T38MaxBitRate:9600<br>a=T38FaxFillBitRemoval:0<br>a=T38FaxTranscodingMMR:0<br>a=T38FaxTranscodingJBIG:0<br>a=T38FaxRateManagement:transferredTCF<br>
a=T38FaxMaxBuffer:72<br>a=T38FaxMaxDatagram:72<br>a=T38FaxUdpEC:t38UDPRedundancy<br><br>freeswitch answer:<br>v=0<br>o=FreeSWITCH 1276579579 1276579581 IN IP4 W.X.Y.Z<br>s=FreeSWITCH<br>c=IN IP4 W.X.Y.Z<br>t=0 0<br>m=image 22230 udptl t38<br>
a=T38FaxVersion:0<br>a=T38MaxBitRate:14400<br>a=T38FaxFillBitRemoval<br>a=T38FaxRateManagement:transferredTCF<br>a=T38FaxMaxBuffer:2000<br>a=T38FaxMaxDatagram:400<br>a=T38FaxUdpEC:t38UDPRedundancy<br>a=T38VendorInfo:0 0 0<br>
<br><br>some debug:<br>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<br>2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Too many retries. Giving up.<br>
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<br>2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set rx type 0<br>2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set tx type 4<br>
2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing from state 17 to 3<br>2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Tx: DCN with final frame tag<br>2010-06-15 13:37:13.234961 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Tx: ff 13 fa<br>
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<br>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<br>
2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Disconnecting<br>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<br>2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set rx type 0<br>
2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.38T Set tx type 1<br>2010-06-15 13:37:14.406960 [DEBUG] mod_spandsp_fax.c:271 FLOW T.30 Changing from state 3 to 2<br>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<br>
2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:301 ==============================================================================<br>2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:313 Fax processing not successful - result (48) Disconnected after permitted retries.<br>
2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:318 Remote station id: <br>2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:319 Local station id: SpanDSP Fax Ident<br>2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:320 Pages transferred: 0<br>
2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:322 Total fax pages: 0<br>2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:323 Image resolution: 0x0<br>2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:324 Transfer Rate: 14400<br>
2010-06-15 13:37:15.634931 [DEBUG] mod_spandsp_fax.c:326 ECM status off<br><br>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.<br>
<br>Thanks in advance,<br><br>Samuel<br>