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We need to develop a SIP to Whatsapp gateway. 

We need to develop a SIP to Whatsapp gateway. The gateway should be able to pass recorded audio as voice calls over SIP and forward them through 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 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/WhatsApp calls.

Functional flow

1) Audio file will send to whatsapp gateway

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

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

5) no restrictions of licence or registration of script or software. It should be delivered with complete source code

Skills: Web Services, Asterisk PBX, FreeSwitch, PHP, VoIP

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About the Employer:
( 0 reviews ) Kazakhstan

Project ID: #20874701

7 freelancers are bidding on average $13/hour for this job

nimbyist

Hi there, I’ve read your brief and I’m pretty confident that I will be able to create your app as required. Available for immediate discussion, Let's proceed and work together. Thank you. **Prices may vary depending on More

$15 USD / hour
(24 Reviews)
4.6
exoxiainfotech

Hi there, Hope you are doing well. I have read your requirements about your project very deeply and I believe that I can complete your project within your budget and time. A, Desired website and application [ IOS and More

$14 USD / hour
(3 Reviews)
1.9
CanvasInfotech10

Hello Sir, I read through the job details extremely carefully and I am absolutely sure that I can do the project very well. I can achieve the results with my team of developers, designers, QA and Project Manager an More

$17 USD / hour
(1 Review)
1.6
teknosoft49

Dear Prospect Hiring Manager. Thank you for giving me a chance to bid on your project. i am a serious bidder here and i have already worked on a similar project before and can deliver as u have mentioned "I can do th More

$11 USD / hour
(0 Reviews)
0.0
BrancoSoft

Hi There, I am writing in response to your post for "We need to develop a SIP to Whatsapp gateway. ."After carefully reviewing the description I feel that I am a suitable match for the job. I lead a Team of Professio More

$11 USD / hour
(0 Reviews)
0.0
vambarasampath

I am a 13+ years of experienced as telecom software developer. I have handled such projects earlier. I have worked on lot of freeswitch, asterisk based dialer applications.

$12 USD / hour
(0 Reviews)
0.0
derld

I am IT engineer with 7 years of experience. I am also an Asterisk core specialist with 6 six years of experience. I am able to implement this project

$11 USD / hour
(0 Reviews)
0.0