- SIP for VOIP: A Practical Guide
- SIP: Unleashing the Power of Voice Over IP
- SIP: The Next Generation of Voice Communication
- SIP: A Comprehensive Guide to Voice Over IP
- SIP: The Essential Guide for VoIP Implementation
- SIP: A Hands-On Approach to VoIP Technology
- SIP: The Ultimate Guide for IT Professionals
- SIP: A Comprehensive Guide for VoIP System Design and Implementation
- SIP: A Practical Guide for IT Professionals
- SIP: A Beginner's Guide to Voice Over IP