Hello Daniel,
Thanks for your answers, I will try again on the lab when it is available (enable topoh only on the SIP proxy)
Sorry for the graph, I finally put it on pastbin https://pastebin.com/QwJ68x1G
The SIP traffic (encrypted unsing TLS) comes from a sip application running on a smartphone (not represented on the graph) and is sent to the SIP proxy (left part of the graph), which is a edge proxy.
Thanks, Christian
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