Hi Kamil,
I think that it's not correct SIP message BYE sent by External SIP Server (Asterisk ??).
Request-URI of BYE must contain header Contact of initial INVITE sent by Genesys; if you notice, Request-URI contains "18.197.58.44:5060", while it should have contained "10.72.240.154:6060".
Maybe some configurations about NAT on Asterisk?
Regards
Giorgio
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Giorgio Conta
ComApp S.r.l
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