Customize the android app CSipSimple

* BASIC TASK IN FEW WORDS: Customize the Android app CSipSimple in order to make it much easier to use (completely user friendly, ready-to-use). In fact, this work is partially finished and what we need is to have it completed. * REQUIREMENTS AND OBSERVATIONS: 1) An experienced, serious and nice Android developer. If he/she has already worked in a similar project (CSipSimple), it could be better. 2) We want clean and standard coding. This is really important for us. 3) We need this work to be finished as soon as possible. 4) Excellence is one of our principles, so this work should be alike. 5) The applicant must write the expression: I UNDERSTOOD YOUR PROJECT in your message to be taken into account. This is in order to know the applicant may have read these requirements. 6) This is a small but very serious project. 7) The app has to look very eye-catching and professional. 8) We can give more details as private. Thank you.