Y2Call is a mobile app for Android and other smartphones, offering a range of functionalities like VoIP Calls & SMSs, cross-OS Instant Messaging and much more from data enabled mobile phones (3G/4G or WiFi). 
For using this app, end users will need an Operator Code, which they can obtain from a VoIP Service Provider. While Service Providers can use this White Label Platform to offer Mobile VoIP services in their own brand.
Features:
★VoIP Calls & SMSs via Wifi, 3G / 4G, edge or UMTS.
★Cross-platform Instant Messaging – an Android user can chat with an iPhone user or a Windows OS user can chat with a BlackBerry user. Offer unlimited mobile chatting and increase stickiness to your brand.
★Easy Sign Up with Mobile Number as user ID & automatic Buddy List creation with facility to invite phonebook contacts to install the app. 
★Facility to enable Mobile Top Up.
For Service Providers
Y2Call is available in all major OS Platforms and you can fully customize & brand it as per your requirements.