I have expertise in VoIP and Telephony application development. I have more than 12+ years of experince in CTI and Asterisk/Freeswitch based application development. I am certified Asterisk Developer from the Asterisk company. Skills : Asterisk, Freeswitch, Twilio, Plivo, Tropo, WebRTC, Node.js Asterisk : Dialplan, AGI Scripting Language : Php, Perl, Java, C#, Shell Scripting, Wordpress, Joomla Database : MySQL, Oracle, MS-SQL and Sybase Projects : IP PBX, IVR, Click2Call, Voice Mail, Dialer, Call Center, Feedback System, Appointment Reminder, CDR Reporting, Voice Mail Transcription (Voice to Text), Phone Payment System, Conference Application for 200 party. I have very good hold on communication based CTI and Web application development.