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SIP to WhatsApp voice gateway

Hello,

We need to develop a SIP to Whatsapp gateway. The gateway should be able to pass voice calls incoming 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/Viber calls.

Functional flow

1) Calls originating will send to WhatsApp gateway

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

3) the termination number carried from the origination header will be checked by the Viber 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

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

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About the Employer:
( 0 reviews ) Colombia

Project ID: #25847342

4 freelancers are bidding on average $511 for this job

AwaisChaudhry

Hi, I saw that you need help with Mobile App Development, C Programming, Asterisk PBX, Android and VoIP. I have 9 years of experience working on these frameworks. I believe I can help you with it. I would request you t More

$750 USD in 28 days
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Xcoder88

So you need a middle-ware over Whatsapp from which all the calls will pass & redirected chosen ones to app? I have got you covered. I am CEO of Koderlabs LLC, Texas and I am leading a team of 135+ developers. I can gi More

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navneetsoni

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farhadhosainmun

To be developed: 1. Android app 2. iPhone app 3. Admin panel 4. UI/UX 5. Database design [login to view URL] development We have a team of software architects and developed similar functional applications. so we can ensure you to More

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