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Viber/Whatsapp gateway

We need to develop a SIP to Viber/Whatsapp gateway. The gateway should be able to pass voice calls incoming over SIP and forward them through Viber/whatsapp to complete the call to the called party number. The development platform/operating system is not important. The project should be completed either by using the Linux/Windows Viber/whatsapp executables, or by using the Android / Windows Phone mobile versions of the application, no matters on the version number. The implementation should return the correct call error codes to the SIP backend, i.e. CALL SUCCESS, BUSY, UNAVAILABLE, etc. For a successful project we'll select the one, triggering successfully continuous SIP/Viber calls.

Functional flow

1) Calls originating will send to Viber/whatsapp gateway

2) Viber/whatsapp gateway converts the sip/iax signal to viber protocol

3) the termination number carried from the origination header will be checked by the Viber gateway , if the number is used by Viber/whatsapp and if the number is online, the call will terminated on Viber/whatsapp!.

4) if the number is not used in VIber it sends 503 error and rerouted to other gateways .

Skills: Android, Asterisk PBX, Mobile App Development, VoIP, C Programming

About the Employer:
( 0 reviews ) peshawar, Pakistan

Project ID: #22309136

10 freelancers are bidding on average $1436 for this job

kodecubeinfosys

Hi, Greetings of the day! i have read the job details and we are sure that we can do app project very well. I am leading India based trusted mobile and web application development company having more tha More

$1515 USD in 40 days
(47 Reviews)
7.0
Software9981

Hello, Greetings of the day! I saw your proposal and understood completely. We are a team of expert developers and have more than 6 years of experience in the same domain. We will complete your task on time and on budg More

$1125 USD in 7 days
(18 Reviews)
6.5
JinTai

Hi I just read your posting. Sounds like you need some help for building VIP/Whatsapp gateway. I ve background in building api with calling service like twilio and mobile app. I am very interested in your job. If any More

$2000 USD in 20 days
(16 Reviews)
5.6
dissind

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$1125 USD in 20 days
(6 Reviews)
4.6
phonexayphong523

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$1200 USD in 10 days
(3 Reviews)
4.1
mobiappsoftware

Hello , I Will develop your app for android and ios both. I have full stack developers team so i want this [login to view URL] send me a message for more details. I have seen your requirement and I will do this in less time. More

$766 USD in 12 days
(6 Reviews)
3.5
sajidkhan45

Hi, I am a professional Mobile app developer capable of doing full-stack development. I can develop a SIP to Viber/Watsapp gateway that can directly pass voice calls incoming over SIP and forward them through Viber/Wat More

$1500 USD in 12 days
(1 Review)
2.8
sirajahmadzai

Dear Hiring Manager, After reviewing your job description, it’s clear that you’re looking for a candidate that is extremely familiar with the responsibilities associated with the role, and can perform them confidentl More

$1500 USD in 7 days
(4 Reviews)
1.9
kmanishkumar

i have readymade solution try us Hello, I’m Manish. We are team of 90 members, dedicated to serve every client, we work on weekend too for fast delivery of projects My skill set; Python, Angular, Vue, AI, AR, Android, More

$2500 USD in 14 days
(0 Reviews)
0.0
Srinfoteam

Hii, It's surendra from Attors Studio I just read your project details and Im excited to work on this if possible. we work with globel clients and providing quality work and solutions. I would like you to take a look More

$1125 USD in 7 days
(0 Reviews)
0.0