Hi, I have a strange situation where faxes gets stuck for good amount of time on rxfax application. Detailed debugging let me to conclusion that one side doesn't send signal back and the other side is not 'timing out'/ giving up. Callflow is fax...provider...gateway... rxfax(file.tif) Here is the log:
b8a0b22f-5733-499d-a32f-712106821a53 2016-12-07 10:08:03.434513 [DEBUG] sofia.c:5677 Channel sofia/external/496421607583@89.184.172.62 entering state [ready][200] 2016-12-07 10:08:03.504510 [DEBUG] mod_spandsp_fax.c:286 FLOW T.38T Type FCD - CRC OK (clean) 2016-12-07 10:08:03.504510 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Stop none (0 remaining) 2016-12-07 10:08:03.504510 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Rx: FCD without final frame tag 2016-12-07 10:08:03.504510 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Rx: ff 03 06 41 02 d1 a5 0b d2 bf ef ff af ae 77 1f 06 eb 88 5e bf fb 82 40 5f 7f 15 04 41 af ba 2e d5 13 48 8c 5f d7 9f 20 13 87 62 6c ba e8 e2 4b 5c 89 40 ec ea 1b 32 c7 21 e2 29 08 7a 41 10 f4 d6 fd ff aa bf ff 1f 22 2e 30 1e 82 e2 5f 02 81 56 e9 ab 6e 08 02 bd 21 5c c3 82 20 90 ff 08 d6 fa 5f 10 e1 b8 59 55 10 84 e8 e2 0e fd 55 a6 70 28 34 8e 7f 7f c7 02 4b 47 15 04 fd 0c e9 ff 4d c9 53 1b 7d d5 af ff f5 bf 52 0e 02 f9 70 54 ad a3 7f bd 4a 70 cc 2d 15 5d c4 67 08 59 69 fc 5f fa 15 ba f5 82 a0 c8 91 bd 25 fd 11 b5 be 5e 53 69 3a 2e ad ea 8f a8 af 12 04 fd ff 43 d0 10 e8 fd 54 8b 21 ba d8 fa ff 9a 2f 53 89 24 04 21 9a 64 31 3f 52 69 e2 13 9f 2e ba e8 d2 ff 7f 21 04 aa 82 88 ff 35 7d ba 40 a0 5d 5f 7a bc 9e 10 fd 2f be 52 5b fa ef a8 a6 e2 ff ff 6b f5 fd bf d0 d1 ff 7a ff 2016-12-07 10:08:03.504510 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Storing ECM frame 65, length 256 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Receive complete in phase T30_PHASE_C_NON_ECM_RX, state 7 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Non-ECM signal status is Carrier down (-1) in state 7 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Trainability (TCF) test result - 14512 total bits. longest run of zeros was 14480 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Changing from phase T30_PHASE_C_NON_ECM_RX to T30_PHASE_B_TX 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.38T Set rx type 0 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.38T Set tx type 4 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Changing from state 7 to 8 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Tx: CFR with final frame tag 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 Tx: ff 13 84 2016-12-07 10:08:03.524532 [DEBUG] mod_spandsp_fax.c:286 FLOW T.30 No signal is present
What I think from the log is that there is no signal from the initiating side, which leads to the message "No signal is present" but my question is why would spandsp still keep waiting? Problem is that this is quite old version of FreeSwitch (FreeSWITCH Version 1.2.0 (git-89c590c 2012-05-08 20-08-26 +0000)) based on ooooold commit 89c590c I've looked at the git diff between the current spandsp and that one, and there are some changes but not that much. Can anyone familiar with this bring some light to me please :) Thanks, -- Regards, Mirko