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Secure Communication VOIP

7 freelancers are bidding on average $643 for this job

kara0216

Hello I am extremely experienced in iOS and Android App development. I have been developing iOS apps for 5+ years in a famous Mobile App Company here. Here are some of my Successful iOS Apps: Jumia Food - Rest More

$25 USD in 1 day
(30 Reviews)
6.1
esol

I have VOIP application and have ZRTP feature as well. It also have peer to peer file transfer feature.

$25 USD in 1 day
(13 Reviews)
4.9
yaserin

Hello, I'm expert voip engineer and i have built many telecom apps like [login to view URL] i can help you build high secure app using ZRTP high secure technology. best yas

$4333 USD in 30 days
(1 Review)
3.1
$20 USD in 3 days
(3 Reviews)
1.6
Vikasmobikan

Hi, I read your requirements that you are looking for. I am very confident enough to complete your task with quality and within the time limit and cost effective. Hoping for a positive response Thanks and Re More

$70 USD in 1 day
(0 Reviews)
0.0
wahab054

Hey there, We have studied your requirements and would like to offer you our app (Android and iOS) development skills. We have worked on different kinds of applications, technologies, frameworks, SDKs, third party li More

$20 USD in 3 days
(0 Reviews)
0.0
MAzeem786

Hello.. I'm Azeem, a Android application developer, specializing in User Interface Design. My primary skill set includes JSON, VOLLEY,HTML,PHP,MYSQL. I also have advance knowledge and experiences on C# and Unity. If More

$10 USD in 3 days
(0 Reviews)
0.0