MCX-SIP-Comm

Overview

MCX-SIP-Comm is a mission-critical communication system built with SIP (Session Initiation Protocol) and MCPTT (Mission-Critical Push-to-Talk) technologies to ensure secure, real-time voice communication in high-reliability environments. This system is designed to provide encrypted, concurrent, and scalable communication, ideal for mission-critical applications that require the highest levels of reliability and security.

Key Features

• SIP-based signaling: Handles call setup, session management, and signaling using the robust SIP protocol.
• MCPTT functionality: Implements Mission-Critical Push-to-Talk (MCPTT) for instant, reliable voice communication in high-stakes environments.
• End-to-end encryption: Utilizes TLS for signaling security and SRTP for encrypted media, ensuring communication confidentiality.
• Multithreaded processing: Uses POSIX pthreads to manage multiple concurrent calls, maximizing performance and responsiveness.
• Efficient session management: Implements advanced data structures such as linked lists, structs, enums, and unions for optimal session management and scalability.
• Automated QA framework: Includes a custom QA automation suite for functional and stress testing to ensure system reliability under heavy load conditions.

Technologies & Tools Used

• SIP Stack: Sofia-SIP, a robust open-source SIP stack.
• Multithreading: POSIX pthreads for handling concurrent communications.
• Security: TLS for signaling encryption, SRTP for media encryption.
• Programming Language: C, leveraging low-level system capabilities for optimal performance.
• Data Structures: Advanced use of structs, enums, unions, and linked lists for highly efficient and scalable session management.
• Testing Framework: Custom-built automation tools for functional and stress testing.
• Docker: Integrated Docker support to build and run the system in a containerized environment, eliminating the need for sudo or system-wide installations and dependencies.

Roles

• Developer: Responsible for implementing SIP signaling, media handling, and session management, with a focus on security and performance.
• QA Engineer: Develops testing strategies, creates automated test scripts, and ensures the system's reliability under varying loads.

Installation Guide

1. Clone the Repository
   Clone the repository to your local machine:

   git clone https://github.com/your-repo/MCX-SIP-Comm.git
   cd MCX-SIP-Comm
   
   
   

   Copy

2. Build with Docker
   The project includes a Docker configuration to build the system with all dependencies pre-configured (including Sofia-SIP, OpenSSL, etc.), ensuring a smooth setup without the need for sudo or system-wide installations.

   make
   
   

   Copy

3. Run the application
   Once the build completes, you can run the SIP server and client:

   # Start the SIP server
   ./mcx_sip_server
   
   # Start a client
   ./mcx_sip_client -u user1 -p 5060
   

   Copy

Contributors

• Vanessa Lorenzo Toquero – Developer & QA
• César M. Varela García – QA & Developer

License

This project is licensed under the MIT License.

References & Specifications

For more technical information, refer to the 3GPP specifications related to SIP and MCPTT:

TS 24.379, TS 24.380, TS 24.384.