๐ก VoIP
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๐ NAT / RTP Path Simulator
Paste an SDP to visualize IP/port routing through NAT โ detects one-way audio and media path issues
Input
SDP (from INVITE or 200 OK)
Observed public IP (packet source)
Scenario
Client behind NAT (SIP phone โ PBX)
PBX behind NAT (PBX โ SIP trunk)
Double NAT (both sides behind NAT)
No NAT (direct connection)
RTCP multiplexed?
No (RTCP on port+1)
Yes (a=rtcp-mux)
๐ Simulate NAT Path
RTP Media Path
SDP Fields Analyzed
Recommended Fixes