Contact the Author

About Derek Lam

I am a VOIP consultant of a Hong Kong ITSP and telecom solution provider.  

I have been in the IT industry for over 20 years, having extensive experience in project management, system integration and VOIP implementation.

This blog is a collection of experiences and working examples earned in my career.

You can reach me at nekosan.monkey@gmail.com or dereklam@zonetel.com.