I would like to develop an application that enables cheap telephone calls to be made via, on app (Blackberry, iPhone or Android), and also by a Java download to a desktop on Windows or (maybe later Mac).
Please be aware that it IS NOT just a mobile app, it requires development of the backend system to do the billing and call routing too.
For a full explanation of what I require please see the website below (this is someone that has done it already, so very similar to this!:-
This puts two calls into effective conference, firstly calling the user back, then making the ongoing call. It will need a billing engine, and be able to take payments via card or via account set up (for corporates).
the one thing that I would do differently to the app that has been developed above, it that when the user is in good wifi reception the call could be routed via SIP to an Avaya Communication Manager sat in the data center. This would be able to log on the SIP client in the app and make the call via the platform, ie. client to Avaya, into the platform above then makes sure the call is billed. (This SIP part is second phase).
Please advise what the budget should be if it varies from the below.
All intellectual property would be the property of Aura Alliance.
Ongoing support will be required, maybe a permanent vacancy.
10/10 Fluency in English required. Preference to a contractor based in Singapore, but not a prerequisite.