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Build me a VOIP-Mobile-Gateway as an Andoid App

Job Description:

I'm looking for someone to develop me an Android app that acts as a ""SIP server / mobile gateway" and makes the cellular line of the smartphone usable with a SIP client. So it is also a kind of VOIP mobile gateway. It may be possible to port the free IP telephony software [login to view URL] to use the cell phone as a cellular gateway. However, it is important that the APP serves both as a gateway and as a SIP server, so you can log on to the app with any VOIP client to make calls via the smartphone's cellular network using SIP protocol (IP telephony).

Important: The app should run on any modern Android smartphone running Android 10 or later.

Skills: Android, Mobile App Development, VoIP, Asterisk PBX, SIP

About the Client:
( 0 reviews ) Berlin, Germany

Project ID: #35358426

13 freelancers are bidding on average €324 for this job

corpmember29

Hi There! You need to build a VOIP-Mobile-Gateway as an Andoid App, I got 7+ years of experience in developing apps for startups and have good proven track records and excellent clients reviews, I have also good sk More

€600 EUR in 16 days
(47 Reviews)
6.9
gtssoftindia

Let's get start right-now. Do you have a quick time to discuss in more brief about your project on a call? I assure you that you will get a secure, scalable, and 100% bug free Android/iOS app where you will get an all More

€550 EUR in 15 days
(5 Reviews)
5.8
chandankandar007

Telephony ip with voip asterisk i can coz I have done before so. Rest of work say better than words Thanks Chandan kandar

€940 EUR in 15 days
(15 Reviews)
5.8
EmmaWat

Greetings! I have read your description carefully and understand what you actually need. I am an experienced developer and can handle this project easily and in perfect manner. I am available now and can start right aw More

€200 EUR in 5 days
(10 Reviews)
5.3
kmd715

Hey, I have read your project description and and saw you requirement. I would like to do this project if you like to accept my proposal. I am expert in Mobile application development and I have developed multiple apps More

€300 EUR in 7 days
(11 Reviews)
3.4
tarungehlot88

Hello, i have gone thought your job posting design and development of the that acts as a VOIP-Mobile-Gateway as an Android App ""SIP server / mobile gateway" and makes the cellular line of the smartphone usable with a More

€195 EUR in 17 days
(3 Reviews)
2.7
grapessoft

Hi Greetings! I am available right now for the project discussion and can start the project on an immediate basis. I have understood your project requirement I have7++ experience in design and development. I can ha More

€250 EUR in 7 days
(0 Reviews)
0.0