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

Beceriler: Web Hizmetleri, Asterisk PBX, FreeSwitch, PHP, VoIP

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İşveren Hakkında:
( 0 değerlendirme ) Kazakhstan

Proje NO: #20874701

Bu iş için 7 freelancer ortalamada $13/saat teklif veriyor


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 Daha Fazla

$15 USD / saat
(24 Değerlendirme)

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 Daha Fazla

$14 USD / saat
(3 Değerlendirme)

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 Daha Fazla

$17 USD / saat
(1 Yorum)

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 Daha Fazla

$11 USD / saat
(0 Değerlendirme)

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 Daha Fazla

$11 USD / saat
(0 Değerlendirme)

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 / saat
(0 Değerlendirme)

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 / saat
(0 Değerlendirme)