In this job freelancers need to create VoIP app like Viber but less complicate. Specifications for this job are Voice, Text and Location.
For people that doesn’t know :
Viber is a VoIP tool that is gaining popularity and is reaching its hundred million users. It doesn’t offer a lot of functions, but there are two that take it out of the lot: it allows you to communicate using VoIP for free bypassing your mobile carrier, but while using your GSM phone number, and it allows group messaging. It works on Wi-Fi and 3G.