Hi All, Have been trying to workout how to solve a call scenario involving SRTP and need some help. The scenario is: Eyebeam ---->FS----->Eyebeam with make and accept only encrypted calls set. What I am hoping to acheive is, if the A leg does not have SRTP set and no SRTP Descriptors are sent in the INVITE to the B leg, when the B leg responds with 415 Bad Security Level this is intercepted and a re-invite is sent with the security descriptions so this call, 1, terminates and 2, is B leg secure. In my dialplan I have CONTINUE_ON_FAILURE set for 79 and then set BYPASS_MEDIA=FALSE (was SET true earlier in the Dialplan) and EXPORT SIP_SECURE_MEDIA=TRUE then finaly bridge the call once more. What I get is Eyebeam FS Eyebeam ---->INVITE no SRTP----> <---100 Trying <--------- ---->INVITE no SRTP----> <---415 Bad Security<---- ---->INVITE no SRTP----> Based on the following debug snippet showing the continue on fail occuring, the Local Key is generated, however it is not added to the second INVITE message when sent out. 2009-05-22 13:23:40 [DEBUG] switch_ivr_originate.c:2094 switch_ivr_originate() Originate Resulted in Error Cause: 79 [SERVICE_NOT_IMPLEMENTED] 2009-05-22 13:23:40 [INFO] mod_dptools.c:2074 audio_bridge_function() Originate Failed. Cause: SERVICE_NOT_IMPLEMENTED 2009-05-22 13:23:40 [DEBUG] mod_dptools.c:2101 audio_bridge_function() Continue on fail [true]: Cause: SERVICE_NOT_IMPLEMENTED EXECUTE sofia/internal/0631000002@sip.evolutiontel.net set(bypass_media=false) 2009-05-22 13:23:40 [DEBUG] mod_dptools.c:748 set_function() sofia/internal/0631000002@sip.evolutiontel.net SET [bypass_media]=[false] EXECUTE sofia/internal/0631000002@sip.evolutiontel.net export(sip_secure_media=true) 2009-05-22 13:23:40 [DEBUG] mod_dptools.c:886 export_function() EXPORT [sip_secure_media]=[true] EXECUTE sofia/internal/0631000002@sip.evolutiontel.net export(sip_crypto_mandatory=true) 2009-05-22 13:23:40 [DEBUG] mod_dptools.c:886 export_function() EXPORT [sip_crypto_mandatory]=[true] EXECUTE sofia/internal/0631000002@sip.evolutiontel.net bridge({sip_from_uri=sip:0631000002@sip.evolutiontel.net}sofia/sip.evolutiontel.net/0631000006@192.168.0.3^103@sip.evolutiontel.net) 2009-05-22 13:23:40 [DEBUG] switch_ivr_originate.c:1082 switch_ivr_originate() variable string 0 = [sip_from_uri=sip:0631000002@sip.evolutiontel.net] 2009-05-22 13:23:40 [NOTICE] switch_channel.c:602 switch_channel_set_name() New Channel sofia/internal/0631000006@192.168.0.3 [b0e7a29c-b154-4b9c-b851-4d987669571f] 2009-05-22 13:23:40 [DEBUG] mod_sofia.c:2659 sofia_outgoing_channel() (sofia/internal/0631000006@192.168.0.3) State Change CS_NEW -> CS_INIT 2009-05-22 13:23:40 [DEBUG] switch_core_session.c:933 switch_core_session_signal_state_change() Send signal sofia/internal/0631000006@192.168.0.3 [BREAK] 2009-05-22 13:23:40 [NOTICE] switch_core_session.c:1085 switch_core_session_thread() Session 225 (sofia/internal/0631000006@192.168.0.3) Ended 2009-05-22 13:23:40 [NOTICE] switch_core_session.c:1087 switch_core_session_thread() Close Channel sofia/internal/0631000006@192.168.0.3 [CS_DESTROY] 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:559 switch_core_session_destroy_state() (sofia/internal/0631000006@192.168.0.3) State DESTROY 2009-05-22 13:23:40 [DEBUG] mod_sofia.c:240 sofia_on_destroy() sofia/internal/0631000006@192.168.0.3 SOFIA DESTROY 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:60 switch_core_standard_on_destroy() sofia/internal/0631000006@192.168.0.3 Standard DESTROY 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:559 switch_core_session_destroy_state() (sofia/internal/0631000006@192.168.0.3) State DESTROY going to sleep 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:397 switch_core_session_run() (sofia/internal/0631000006@192.168.0.3) Running State Change CS_INIT 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:480 switch_core_session_run() (sofia/internal/0631000006@192.168.0.3) State INIT 2009-05-22 13:23:40 [DEBUG] mod_sofia.c:83 sofia_on_init() sofia/internal/0631000006@192.168.0.3 SOFIA INIT 2009-05-22 13:23:40 [DEBUG] sofia_glue.c:1972 sofia_glue_build_crypto() Set Local Key [1 AES_CM_128_HMAC_SHA1_32 inline:0mENEM7ab0d6DtmcCMgDmbHXlYIHpdXdLnVCtFYX] 2009-05-22 13:23:40 [DEBUG] mod_sofia.c:111 sofia_on_init() (sofia/internal/0631000006@192.168.0.3) State Change CS_INIT -> CS_ROUTING 2009-05-22 13:23:40 [DEBUG] switch_core_session.c:933 switch_core_session_signal_state_change() Send signal sofia/internal/0631000006@192.168.0.3 [BREAK] 2009-05-22 13:23:40 [DEBUG] sofia.c:2911 sofia_handle_sip_i_state() Channel sofia/internal/0631000006@192.168.0.3 entering state [calling][0] 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:480 switch_core_session_run() (sofia/internal/0631000006@192.168.0.3) State INIT going to sleep 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:397 switch_core_session_run() (sofia/internal/0631000006@192.168.0.3) Running State Change CS_ROUTING 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:483 switch_core_session_run() (sofia/internal/0631000006@192.168.0.3) State ROUTING 2009-05-22 13:23:40 [DEBUG] mod_sofia.c:130 sofia_on_routing() sofia/internal/0631000006@192.168.0.3 SOFIA ROUTING 2009-05-22 13:23:40 [DEBUG] switch_ivr_originate.c:63 originate_on_routing() (sofia/internal/0631000006@192.168.0.3) State Change CS_ROUTING -> CS_CONSUME_MEDIA 2009-05-22 13:23:40 [DEBUG] switch_core_session.c:933 switch_core_session_signal_state_change() Send signal sofia/internal/0631000006@192.168.0.3 [BREAK] 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:483 switch_core_session_run() (sofia/internal/0631000006@192.168.0.3) State ROUTING going to sleep 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:397 switch_core_session_run() (sofia/internal/0631000006@192.168.0.3) Running State Change CS_CONSUME_MEDIA 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:502 switch_core_session_run() (sofia/internal/0631000006@192.168.0.3) State CONSUME_MEDIA 2009-05-22 13:23:40 [DEBUG] switch_core_state_machine.c:502 switch_core_session_run() (sofia/internal/0631000006@192.168.0.3) State CONSUME_MEDIA going to sleep 2009-05-22 13:23:40 [DEBUG] sofia.c:2911 sofia_handle_sip_i_state() Channel sofia/internal/0631000006@192.168.0.3 entering state [terminated][415] If I swap and A leg is set to have SRTP and B party does not it will be setup with only the A leg having SRTP and the B leg being normal RTP. Let me know if you need any further info, or if this is a fault and will need a jira ticket opened. FreeSWITCH Version 1.0.trunk (13232) Thanks, Jim