Understanding OpenSIPS

OpenSIPS is a highly scalable, open-source communication platform that acts as a SIP server. It is widely used for handling real-time multimedia communications, including voice and video calls, instant messaging, and presence. This page provides essential command-line examples for managing and operating an OpenSIPS instance.

Core OpenSIPS Operations

The primary executable for OpenSIPS is opensips. Understanding its various command-line options is crucial for effective deployment and troubleshooting.

Starting and Managing OpenSIPS

Here are common commands for starting and managing the OpenSIPS service:

# Start OpenSIPS with a specific configuration file
opensips -f /path/to/opensips.cfg

# Run OpenSIPS in debug mode, level 3, for detailed logging
opensips -f /path/to/opensips.cfg -D 3

# Enable a specific module for debugging purposes
opensips -f /path/to/opensips.cfg -m core

# Verify the configuration file for syntax errors without starting the server
opensips -c -f /path/to/opensips.cfg

# Display the version of the installed OpenSIPS
opensips -V

# Run OpenSIPS in foreground mode, useful for testing and development
opensips -f /path/to/opensips.cfg -F

# Check OpenSIPS compilation options and build information
opensips -V -K

# Enable debug logs and run in the foreground for immediate troubleshooting
opensips -f /path/to/opensips.cfg -F -D 3 -E

# Start OpenSIPS with increased memory allocation (e.g., 256MB)
opensips -f /path/to/opensips.cfg -m 256

# Start OpenSIPS and specify a Process ID (PID) file for management
opensips -f /path/to/opensips.cfg -P /path/to/opensips.pid

External Resources for OpenSIPS

• OpenSIPS Official Documentation
• RFC 3261 - SIP: Session Initiation Protocol
• MDN Web Docs - HTTP (Relevant for SIP's underlying principles)