SIP Packet Analysis
Paste a single SIP request or response below. The analyzer parses the message, checks structure and syntax, and helps surface problems that often explain signaling issues—before you dig into headers and SDP by hand.
It also extracts key information: headers, call-flow context, and SDP when present, with validation and a detailed breakdown of the message (including content-type handling).
Analysis Error
SIP Packet Input
Analysis Results
Submit a SIP packet to analyze its contents
Informational signals from sipright about the message (non-fatal).
These are non-fatal quality signals; the packet still parsed successfully.
Known compact headers will be expanded to their standard full names.
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