2017-04-25 15:54:42.508345 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35701 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:42.608365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35702 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:42.808365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35703 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:43.008365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35704 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:43.208367 [DEBUG] switch_rtp.c:1460  [ zrtp engine]: WARNING! HELLO have been resent 5 times without a response. Raising ZRTP_EVENT_NO_ZRTP_QUICK event. ID=3
2017-04-25 15:54:43.208367 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35705 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:43.408365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35706 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:43.608365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35707 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:43.808365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35708 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:44.008365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35709 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:44.208365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35710 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:44.408365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35711 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:44.608365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35712 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:44.808365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35713 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:45.008365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35714 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:45.208366 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35715 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:45.408360 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35716 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:45.608369 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35717 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:45.808365 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35718 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:46.008348 [DEBUG] switch_rtp.c:1460  [  zrtp utils]:   Send <HELLO> ssrc=1762105306 seq=35719 size=148. Stream 3:CLEAR:START
2017-04-25 15:54:46.208365 [DEBUG] switch_rtp.c:1460  [ zrtp engine]: WARNING! HELLO Max retransmissions count reached (20 retries). ID=3
2017-04-25 15:54:46.208365 [DEBUG] switch_rtp.c:1460  [        zrtp]:   Stream ID=3 CLEAR switching <START> ---> <NOZRTP>.