Over the last 9 years, I've given consultancy on various opensource VoIP technologies like Asterisk, FreeSWITCH, Kamailio and OpenSIPS. I have deployed numerous telephony servers and applications like PBXs, CallCenter dialers ( ViciDial, OSDial ) , IVRs, Click to call, CTI, for small and large enterprises. My core competency lies in complete end-end turnkey telecom solutions. Also, I am expert python programmer, delivered many desktop and web and service application developed in wxPython,Tkinter, PyQt, PySide, pySonic, tkSnack django and client server applications using Twisted framework. I love building network applications and I have expert level grasp on TCP/IP stack. I am expert in building web (high) scale applications and highly concurrent distributed application.