Hi, i have problem with faxes which are not working as they should. In my log file I can see this error: 2012-12-03 14:56:43.477028 [DEBUG] sofia.c:6293 Remote SDP: v=0 o=sbc2 1325546 1 IN IP4 212.13.249.90 s=sip call c=IN IP4 212.13.249.91 t=0 0 m=audio 16158 RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=silenceSupp:off - - - - 2012-12-03 14:56:43.477028 [DEBUG] sofia_glue.c:5094 Audio Codec Compare [PCMA:8:8000:20:64000]/[PCMU:0:8000:20:64000] 2012-12-03 14:56:43.477028 [DEBUG] sofia_glue.c:5094 Audio Codec Compare [telephone-event:101:8000:20:0]/[PCMU:0:8000:20:64000] 2012-12-03 14:56:43.477028 [DEBUG] sofia_glue.c:5219 Set 2833 dtmf send/recv payload to 101 2012-12-03 14:56:43.477028 [ERR] sofia.c:6828 Reinvite Codec Error! I am bridging call like this: <action application="bridge" data="{ignore_early_media=true,fax_enable_t38=true,fax_verbose=true,fax_use_ecm=false,fax_enable_t38_request=true}user/${destination_number}.fs_kabelvoip1@xxx.xxx.xxx.xxxx" /> I tired with t38 reuqest false, ecm false... from cli: EXECUTE sofia/internal/074961627@xxx.xxx.xxx.xxx bridge({ignore_early_media=true,fax_enable_t38=true,fax_verbose=true,fax_use_ecm=true,fax_enable_t38_request=true}user/074978115.fs_kabelvoip1@xxx.xxx.xxx.xxx) 2012-12-03 14:56:28.397064 [DEBUG] switch_channel.c:1072 sofia/internal/074961627@xxx.xxx.xxxx.xxxx EXPORTING[export_vars] [RFC2822_DATE]=[Mon, 03 Dec 2012 14:56:28 +0100] to event 2012-12-03 14:56:28.397064 [DEBUG] switch_ivr_originate.c:2005 Parsing global variables 2012-12-03 14:56:28.397064 [DEBUG] switch_event.c:1569 Parsing variable [ignore_early_media]=[true] 2012-12-03 14:56:28.397064 [DEBUG] switch_event.c:1569 Parsing variable [fax_enable_t38]=[true] 2012-12-03 14:56:28.397064 [DEBUG] switch_event.c:1569 Parsing variable [fax_verbose]=[true] 2012-12-03 14:56:28.397064 [DEBUG] switch_event.c:1569 Parsing variable [fax_use_ecm]=[true] 2012-12-03 14:56:28.397064 [DEBUG] switch_event.c:1569 Parsing variable [fax_enable_t38_request]=[true] What else can I do are there any other ways to debug this:)? Thanks! Miha