Upgrade a Chat App to enable calling GSM phones feature and the general look and feel

Hi. there. I've read your description carefully and get to know that you need to upgrade for an existing Chat App that is already in the market. Relevant Skills and Experience As you see in my profile, I have successfully delivered 180+ Android/ iPhone apps for clients across 50+ countries in 7+ years. I am one of top-class mobile developers in this website. Proposed Milestones R4736 ZAR - 4 milestones. I can begin work immediately if we meet agreement. I am always ready to discuss for you. Thanks.

My name is LiMing. I am coding for over 10 years and have many experiences in this field. I read your description carefully and have some questions related to project development. Please contact to me and let's discuss your project in detail I WILL HELP YOU WITH BEST SERVICE. - My Service : 1. Perfect result and flexible service. 2. Good communication. If I work with you , my timezone will be changed to your timezone. 3. Full time working 4. Simple update and maintenance are free. 5. Hope long term relationship. Thank you for reading my proposal. - Relevant Skills and Experience Android, Asterisk PBX, iPhone, Mobile App Development, VoIP - Proposed Milestones 30 - Design, UI Version 40 - Prototype 30 - Delivery

Hi We have already developed 10+ online store projects and having 15+ years of experience in this field. We are highly interested in your project and can accomplish it within deadline.... Relevant Skills and Experience Android,Asterisk PBX,iPhone,Mobile App Development,VoIP, Proposed Milestones R3888 ZAR - Full project