SIP Protocol & Log Analyzer - iN2 LLC

Parse Asterisk, FreeSWITCH, or raw SIP packets to visualize call flows, trace signaling sequences, and diagnose NAT, registration, and codec negotiation issues.

SIP Log Input

Paste your Asterisk PJSIP debug logs (pjsip set logger on), FreeSWITCH Sofia siptrace logs, or raw SIP packets.

Click on any message arrow in the diagram to inspect its headers and SDP payloads.

SIP Message Inspector

Select a message in the call flow to see raw headers and media configurations.