Android app using PJSip and OpenWebRTC -- Upd

This project is for independent coders only and *not* for agencies! You need to be fully fluent in Android SDK but also in Android NDK. Also it is absolutely mandatory that you not only have a recent Android smartphone with Android >=4.0 but also have an iPhone >= 5s. Your objective is to create an Android app that is essentially a clone of our existing iOS app that we are currently developing. It's primarily a voice and video communications app. You will use the PJSip SDK for voice calls and openWebRTC for video connections and you will consume a REST API for session authentication and credit checks. All the artwork for the app already exists and all the business logic is there as well (as it is implemented in the iOS app). In addition to the actual Android coding your job would also be to help our designer to polish the existing iOS based artwork to have it look and feel more like a native Android app instead of a 100% iOS app clone. *IMPORTANT* Please create short *video* demos (screen recordings) of your best Android apps in your portfolio and attach (preferably) dropbox links to your proposal. Prior experience with voip / video is a plus but not mandatory. I want to see what you have done and I want to hear you explain the main aspects of the individual app to me in those videos. Do not just copy and paste Google Playstore links. I need you to be able to start right away and I would expect you to invest several hours per day at least 5 days per week into this project. During the development process you will be in close contact with me (for backend related questions), the iOS developer and also the designer. We mostly communicate via Skype and/or [login to view URL] (video conferencing). And really - the most important aspect is that you pay close attention to detail. So please start your proposal with the sentence "Yes, I have!" to demonstrate that you are not just spamming with a generic proposal! This could very well lead to a long term partnership as the development of the app never really "stops". I need someone who is trustworthy, very experienced, smart and reliable. And you have to be fully fluent in English.