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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)
8.5
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8.0
hitech10

Hello, I and my team can cater your entire mobile app needs to expedite your business with an excellent ROI. With an experienced team of 55+ developers and 500+ projects delivered till date, we work on all cutting-ed Plus

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7.7
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7.2
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7.0
r4rony

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(18 Commentaires)
7.5
ctinfotech1

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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(27 Commentaires)
6.7
PrashantR6

Greetings Axenet IT solution, With the gratitude of experience in "IT Application's" from the core 6+ years or even longer, we have been through your early requirement you share, we have a qualified professional tea Plus

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(40 Commentaires)
5.9
pinesucceed01

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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(28 Commentaires)
5.4
(3 Commentaires)
5.5
irfanui

Hi There, This is Mohammad from brief I summarize that you need a Need professional VOIP OTT App -- 2 Right? Sure i'll provide you with Quality Work. Please award me the project so that we can discuss it more. I am a F Plus

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4.5
hasinmeir

[login to view URL] [login to view URL] [login to view URL] this is my VoIP web project that I made before using Angular 8/9/10 and PHP. [login to view URL] Plus

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(4 Commentaires)
4.0
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3.7
tgltech

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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2.0
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0.0
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0.0