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I need some help understanding SIP dialog. Some actor is trying to access my server, but I can't figure out what he's trying to do ,or how. I'm getting a lot of these warnings. [May 17 10:08:08] WARNING[1532]: chan_sip.c:4068 retrans_pkt: Retransmission timeout reached on transmission _zIr9tDtBxeTVTY5F7z8kD7R.. for seqno 101 With SIP DEBUG I tracked the Call-ID to this INVITE :

...CE.* .*: Peer '.*' is not dynamic (from <HOST>) > ???????? NOTICE.* .*: Host <HOST> denied access to register peer > '.*' > ???????? SECURITY.* .*: > SecurityEvent="InvalidAccountID".*,Severity="Error",Service="SIP".*,Rem > oteAddress="IPV[46]/(UDP|TCP|TLS)/<HOST>/[0-9]+" > ???????? SECURITY.* .*: > SecurityEvent="FailedACL".*,Severity="Error",Service="SIP".*,RemoteAddr > ess="IPV[46]/(UDP|TCP|TLS)/<HOST>/[0-9]+" > ???????? SECURITY.* .*: > SecurityEv...