The above application was developed for Aakash Tablets while I was working as Project Trainee at Indian Institute of Technology, Bombay between December, 2013 - January, 2014 which basically helped a user to make intranet VoIP calls over FreeSWITCH server. The primarily functionalities of this app is to
Register a VoIP account in FreeSWITCH Server
Make outgoing calls to another VoIP account
Receive incoming calls from a VoIP account, display caller id and play a ringtone