SIPp is an open-source testing tool and traffic generator for the Session Initiation Protocol (SIP). It is primarily used for benchmarking, stress testing, and performance analysis of SIP-based applications, VoIP networks, and communication systems. SIPp supports various SIP call flows, authentication, TLS, SCTP, and media handling.

Features of SIPp:

• Powerful SIP traffic generation and benchmarking tool.
• Supports both UDP, TCP, TLS, and SCTP transport protocols.
• Customizable call flows using XML scenarios.
• Integrates with external media tools for RTP-based testing.

To check the installed SIPp version, run: sipp -v.

Disclaimer: SIPp is an open-source project released under the GNU General Public License (GPL). It is developed and maintained by the SIPp community and contributors. SIPp is provided "as is," without any warranty.