iOS application

We have a simple one-to-one video conferencing application for iOS using WebRTC ([login to view URL]) based on OpenTok ([login to view URL]) API. We already have a web based version implemented and the iOS version integrates and communicates with the web version. The iOS application has bugs in it that need to be resolved, features need to be added and version released for Apple’s App store. The code of the iOS application will be provided to understand the existing logic and integration. Requirements: The application is a native iOS application developed using the OpenTok 2.0 iOS SDK. Therefore continuing work on it needs to be done using the existing toolset. The application should work properly for following devices: iPhone 4S / 5 iPad 2 / 3 / 4 / mini Development Environment: Xcode 5.0.2; OS X Mountain lion Existing Features: 1. The application displays a user name text box and connect and hang-up buttons. 2. User enters their name and clicks on connect button. Upon clicking the connect button a. The application shows self video b. It also shows a list of all available users who have logged in from the web app based on certain criteria. 3. Each item in the list of available users is clickable and upon clicking sends a video conferencing invitation/ call to that person. 4. If the other user accepts the call then the video conferencing is started and the other user’s video is displayed. 5. In this condition app does not allow calling other users until the current call in progress. 6. An “End Call” button is displayed to end the call. 7. If the user does not enter their name in the textbox then a system generated ID should be displayed. 8. The hang-up button ends any current call and disconnects the user from the application. 9. The available users are displayed in three separate groups according to their role. 10. A prompt is displayed for incoming calls so that user can either accept or reject the call.