Hello, I have wide area experience in open source technology like php/c++/linux/so files/fusebox AND WINDOW based ASP,COM,DCOM,MTS,VB,VC++,.NET,Flash.
I have expertise in the VOIP Solution using Asterisk fro pbx and SIP Solution. If you like we can provide you previous project details.
Please forward me your mail ID so i can forward you project proposal according your current requirement.
SG