Debug VoIP call flows instantly

Analyze and debug SIP/VoIP call flows in browser

VoIP engineers troubleshooting call failures who want instant RFC-compliant ladder rendering without uploading sensitive traces.

• · PCAP or PCAPNG files
• · sngrep text logs
• · tshark or tcpdump exports
• · raw SIP capture text

• · Call flow ladder diagrams rendered client-side
• · RFC violation reports (missing ACK, codec mismatch, NAT issues)
• · RTP audio playback (in-browser decoding)
• · T.38/T.30 fax decode to TIFF
• · Share links for PCAP traces

• · Optional: Homer 10 or qryn for live call capture
• · Optional: Google OAuth for AI debug feature

• · Modern browser with WebGL/Canvas support
• · No signup, no upload (client-side parsing by default)

• · Missing 200 OK → 180 Ringing → 200 OK pattern edge cases
• · Codec mismatch detection limited to common audio codecs
• · Large PCAP rendering delay on older hardware
• · Live Homer capture only if behind VPN or uses qryn

• · RFC issue detection with specific error categories
• · Live Homer 10 / qryn integration
• · T.38 UDPTL and T.30 G.711 fax decoding to TIFF
• · MCP server for VS Code, Cursor, Claude Desktop
• · 20+ utility tools (E.164 validation, SDP diff, etc.)