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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 .

Квалификация: Android, Asterisk PBX, Mobile App Development, VoIP, Программирование на С

О работодателе:
( 0 отзыв(-а, -ов) ) peshawar, Pakistan

ID проекта: #22309136

10 фрилансеров(-а) в среднем готовы выполнить эту работу за $1436

kodecubeinfosys

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$1515 USD за 40 дней(-я)
(47 отзывов(-а))
7.0
Software9981

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$1125 USD за 7 дней(-я)
(18 отзывов(-а))
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 Больше

$2000 USD за 20 дней(-я)
(16 отзывов(-а))
5.6
dissind

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$1125 USD за 20 дней(-я)
(6 отзывов(-а))
4.6
phonexayphong523

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$1200 USD за 10 дней(-я)
(3 отзывов(-а))
4.1
mobiappsoftware

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$766 USD за 12 дней(-я)
(6 отзывов(-а))
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 Больше

$1500 USD за 12 дней(-я)
(1 отзыв)
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 Больше

$1500 USD за 7 дней(-я)
(4 отзывов(-а))
1.9
kmanishkumar

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$2500 USD за 14 дней(-я)
(0 отзывов(-а))
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 Больше

$1125 USD за 7 дней(-я)
(0 отзывов(-а))
0.0