VoIP web server for ios, andoroid, web app

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I need a voip web server for android, ios. Client will use this library for ios https://github.com/GargoyleSoftware/voip-client-ios. So, you have to connect it somehow to php server via tcp. Please, use ready made solutions (maybe 2600hz or AGI). And by the way I have a question: cleint didn't give access to his asterisk for now, can we test and build all things without it?
Thanks. Awaiting your offers.

Skills required:
Asterisk PBX, PHP, VoIP
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