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Kamailio
SIP / IMS / VoLTE / VoNROpen source SIP Server and IMS Security Gateway capable of handling thousands of call setups per second, used as P-CSCF/I-CSCF testbed.
⚡ Quick Telecom Protocol BriefSIP / IMS / VoLTE / VoNR
Kamailio is an open-source IMS & VoLTE Security component included in TelcoChisel for telecommunications security auditing. It targets SIP / IMS / VoLTE / VoNR infrastructure for compliance with 3GPP and GSMA telecom security standards.
Primary Binary:
kamailioHardware: IP Network InterfaceKamailio — Open Source SIP Server & IMS Security Proxy
Kamailio is an enterprise-grade SIP server used widely across telecom carriers as a SIP proxy, registrar, location server, and IMS Core P-CSCF/I-CSCF/S-CSCF. In TelcoChisel, Kamailio is pre-configured to inspect, filter, rewrite, and secure VoLTE and VoNR call signaling.
Key Telecom Security Capabilities
- IMS P-CSCF Security Layer: Test IPSec association establishment between VoLTE handsets and the carrier core.
- SIP Firewall & Rate Limiting (Pike Module): Simulate and evaluate automated mitigation of SIP flooding and brute-force registration attempts.
- TLS & SRTP Inspection: Set up man-in-the-middle decryption proxy pipelines to analyze encrypted carrier voice sessions.
Cheatsheet
1. Launch Kamailio IMS Proxy
# Start Kamailio with telecom IMS profile
sudo kamailio -f /etc/kamailio/kamailio-ims.cfg -DD -E
2. Monitor Live SIP Routing & Registrations
# Query active registered VoLTE endpoints
kamctl ul show
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