Dear hiring manager, I have great experience in Asterisk, Twilio, Tropo etc. I have done many application into that. I am new to however Freelancer but I can show you the demonstration. There are many integration I have done. I am sure once you talk to me, you feel pleased. If you are interested, kindly share me your Skype id. I look forward to hear you.
BTW, I have done almost 500 + application in total in Asterisk, Twilio, Tropo. This will be very easy for me.
Regards,
Harsh