Good afternoon. Have anyone else drop issue after trying to activate video during call with zrtp encryption? Every time I have INCOMPATIBLE_DESTINATION and hangup after that. In siptrace I found that after receiving sip/sdp invite, Freeswitch send SIP 100 trying and right after it send SIP 488 Not Acceptable Here. Than it follows by bye message to both side. In sofia debug all 9 I didn't realize issue too, but here it is: tport.c:2749 tport_wakeup_pri() tport_wakeup_pri(0x7f9850004440): events IN tport.c:2864 tport_recv_event() tport_recv_event(0x7f9850004440) tport.c:3205 tport_recv_iovec() tport_recv_iovec(0x7f9850004440) msg 0x7f9850519470 from (udp/194.149.101.23:5060) has 2160 bytes, veclen = 1 tport.c:3023 tport_deliver() tport_deliver(0x7f9850004440): msg 0x7f9850519470 (2160 bytes) from udp/88.208.76.34:5060/sip next=(nil) nta.c:2880 agent_recv_request() nta: received INVITE sip:9468349698@194.149.101.23:5060;transport=udp SIP/2.0 (CSeq 22) nta.c:3174 agent_check_request_via() nta: Via check: received=88.208.76.34 nta.c:3248 agent_aliases() nta: canonizing sip:9468349698@194.149.101.23:5060 with contact nta.c:3060 agent_recv_request() nta: INVITE (22) going to existing leg nta.c:1348 set_timeout() nta: timer shortened to 200 ms nua_server.c:102 nua_stack_process_request() nua: nua_stack_process_request: entering soa.c:1302 soa_init_offer_answer() soa_init_offer_answer(static::0x7f98503181f0) called soa.c:1171 soa_set_remote_sdp() soa_set_remote_sdp(static::0x7f98503181f0, (nil), 0x7f985054899a, 1206) called tport.c:3257 tport_tsend() tport_tsend(0x7f9850004440) tpn = UDP/ 88.208.76.34:52522 tport.c:4046 tport_resolve() tport_resolve addrinfo = 88.208.76.34:52522 tport.c:4680 tport_by_addrinfo() tport_by_addrinfo(0x7f9850004440): not found by name UDP/88.208.76.34:52522 tport.c:3594 tport_vsend() tport_vsend(0x7f9850004440): 318 bytes of 318 to udp/88.208.76.34:52522 tport.c:3492 tport_send_msg() tport_vsend returned 318 nta.c:6791 incoming_reply() nta: sent 100 Trying for INVITE (22) nua_stack.c:271 nua_stack_event() nua(0x7f985003baa0): event i_invite 100 Trying nua_session.c:4145 signal_call_state_change() nua(0x7f985003baa0): ready call updated: received received offer soa.c:1098 soa_get_remote_sdp() soa_get_remote_sdp(static::0x7f98503181f0, [0x7f986753f590], [0x7f986753f598], [(nil)]) called nua_stack.c:271 nua_stack_event() nua(0x7f985003baa0): event i_state 100 Trying nua_stack.c:359 nua_application_event() nua: nua_application_event: entering nua_stack.c:359 nua_application_event() nua: nua_application_event: entering nua.c:366 nua_handle_magic() nua: nua_handle_magic: entering nua.c:879 nua_respond() nua: nua_respond: entering nua_stack.c:529 nua_signal() nua(0x7f985003baa0): sent signal r_respond 2017-03-15 11:07:32.110686 [NOTICE] sofia.c:9717 Hangup sofia/default/ 9462793697@phone.pricall.eu [CS_EXECUTE] [INCOMPATIBLE_DESTINATION] nua_stack.c:573 nua_stack_signal() nua(0x7f985003baa0): recv signal r_respond 488 Not Acceptable Here nua_params.c:480 nua_stack_set_params() nua: nua_stack_set_params: entering soa.c:403 soa_set_params() soa_set_params(static::0x7f98503181f0, ...) called nua_session.c:2320 nua_invite_server_respond() nua: nua_invite_server_respond: entering soa.c:1214 soa_clear_remote_sdp() soa_clear_remote_sdp(static::0x7f98503181f0) called tport.c:3257 tport_tsend() tport_tsend(0x7f9850004440) tpn = UDP/ 88.208.76.34:52522 tport.c:4046 tport_resolve() tport_resolve addrinfo = 88.208.76.34:52522 tport.c:4680 tport_by_addrinfo() tport_by_addrinfo(0x7f9850004440): not found by name UDP/88.208.76.34:52522 tport.c:3594 tport_vsend() tport_vsend(0x7f9850004440): 493 bytes of 493 to udp/88.208.76.34:52522 tport.c:3492 tport_send_msg() tport_vsend returned 493 nta.c:6791 incoming_reply() nta: sent 488 Not Acceptable Here for INVITE (22) nua_session.c:4145 signal_call_state_change() nua(0x7f985003baa0): ready call updated: init nua_stack.c:271 nua_stack_event() nua(0x7f985003baa0): event i_state 488 Not Acceptable Here nua_stack.c:271 nua_stack_event() nua(0x7f985003baa0): event i_active 488 Call active soa.c:1302 soa_init_offer_answer() soa_init_offer_answer(static::0x7f98503181f0) called nua_stack.c:359 nua_application_event() nua: nua_application_event: entering nua_stack.c:359 nua_application_event() nua: nua_application_event: entering Without ZRTP encryption it works correctly. -- Best regards / S pozdravem / С наилучшими пожеланиями, Krivopishin Yaroslav.