Need professional VOIP OTT App -- 2

Hi Friends,

I need professional mobile had experienced working with OTT APP (have features call look like messenger/Viber/Whatapp) , can make call and wakeup call anytime when receive push notification of server.

We use SIP Server ( Freeswitch) to develop system.

Each time have call from user A -> user B, system will push notification to user B

User B install mobile app ( Android/IOS) and wakeup and receive call.

We can make this flow work with some device but not all device work smooth, some device can not wakeup ( android, ios too)

i think the app like that ( voip ) need some special skill and tech to implement.

My requirement: please see the attact file

Compétences : Mobile App Development, Android, PBX Asterisk, VoIP, iOS Development

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Concernant l'employeur :
( 3 commentaires ) Ho Chi Minh, Vietnam

Nº du projet : #29472461

16 freelances font une offre moyenne de 6271 $ pour ce travail

(131 Commentaires)
(109 Commentaires)

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(18 Commentaires)

Hello Dear Client, Greetings! I have read your complete requirement set and I can surely help you in this project. We are a team of Mobile app developers who are well versed with Native, Cross-platform, React Native Plus

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Dear Hiring Manager, I have read all your requirements and what you want to do that you have given the attachment have seen it all . Let's discuss it on chat more about the project .

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Hi, Having gone through your requirements for developing Android , I assure you that we are best providers to assist you with the development. ****====Mobile & Web Development experts here===**** I have gone throug Plus

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