SIP Packet Analysis

This tool analyzes SIP packets to extract key information such as headers, call details, and SDP content. Paste a SIP request or response packet below to get started.

The analyzer will parse the packet structure, validate syntax, and provide detailed information about the SIP message including call flow details, header analysis, and content type detection.

SIP Packet Input

Analysis Results

Submit a SIP packet to analyze its contents

How does SIP packet analysis work?

SIP packet analysis involves parsing the structure of Session Initiation Protocol messages to extract meaningful information about VoIP communications. This tool uses the sipright library to perform comprehensive analysis.

The analysis process includes:

  • Syntax Validation: Checking for proper SIP message format and structure
  • Header Parsing: Extracting and categorizing all SIP headers
  • Call Flow Analysis: Identifying call participants, direction, and sequence
  • SDP Detection: Detecting and analyzing Session Description Protocol content
  • Size Analysis: Calculating packet size and fragmentation warnings

The tool supports both SIP requests (INVITE, REGISTER, BYE, etc.) and SIP responses (200 OK, 404 Not Found, etc.), providing detailed information about each message type.

Supported Features

  • Complete SIP message parsing and validation
  • Header expansion and analysis
  • SDP content detection
  • Packet size analysis with fragmentation warnings
  • Call flow information extraction