VOIP - SIP Platform

I am looking for a company who has great experience in building solid VOIP - SIP platforms to build a Whats App like platform but smaller with storng encryption - payment gateway - passcode for customers around world.

Beceriler: VoIP, Asterisk PBX, Android, Mobile App Development, Java

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İşveren Hakkında:
( 0 değerlendirme ) Cardiff, United Kingdom

Proje NO: #22845514

Bu iş için 23 freelancer ortalamada $1279 teklif veriyor


Hi There, Hope you doing well. We are much expertise group of iOS, Android, Website developers and Designers. We will develop your app as you need. Let’s discuss in detail then will start work on it. Thanks.

$1500 USD in 30 gün içinde
(54 Değerlendirme)

VERY EASY FOR ME As you can see in my review, I've done similar with yours FOR VOIP Hello. I have read your description and I am so interested in your project. I am confident in your project and I can finish it clearl Daha Fazla

$1125 USD in 7 gün içinde
(122 Değerlendirme)

Hi, I have read your post and understood your requirement. Looking for the freelancer to work on your next project? Or just need some issues/bugs/fixes ASAP? I have 11+ years of experience and I'm here for you! My sk Daha Fazla

$750 USD in 7 gün içinde
(18 Değerlendirme)

Greetings from Capanicus! We are a VoIP solution provider and have working experience of 12+ yrs on Asterisk, Freeswitch, A2billing, FreePBX, Elastix, MOR billing, Kamailio, Vicidial, 3CX, vTiger, Salesforce CRM, FAX Daha Fazla

$1425 USD in 45 gün içinde
(15 Değerlendirme)

Hello, SIMILAR WORK DONE - [login to view URL] - [login to view URL] • [login to view URL] I have checke Daha Fazla

$2500 USD in 40 gün içinde
(14 Değerlendirme)

Hello ,hope are you well there I have seen your requirement and I am interested in this.I am ready from now to work on your app. i have 7 years of experience in mobile (android / ios ) app development. I will complete Daha Fazla

$1000 USD in 14 gün içinde
(27 Değerlendirme)

Hi, I specialize in Android, Asterisk PBX, Java, Mobile App Development, VoIP and am excited for this opportunity to work with you in accomplishing your goals. Internet is on mobile now and mobile apps are what will ke Daha Fazla

$1250 USD in 18 gün içinde
(55 Değerlendirme)

Hello, i am expert in app development I am a Mobile expert with strong Android ,iPhone/iPad experience and App admin / website with development web services where admin can manage the app from back-end. I have develop Daha Fazla

$755 USD in 7 gün içinde
(16 Değerlendirme)

Professional Android App developer is ready for your project! I have gone through your description and I'm very interesting as an expert in this field. I'm developing Android Apps for 10+ years and have excellent skill Daha Fazla

$1125 USD in 10 gün içinde
(8 Değerlendirme)

Hi, We work in a team and providing services from last 5 years. We have checked your requirement and interested to work with you. It would be great if we could discuss project over chat to discuss it in detail. We ar Daha Fazla

$750 USD in 20 gün içinde
(9 Değerlendirme)

Hello I have experience of a VOIP SIP server and mobile application development and before worked a similar project. Can you share more detail you need items? I hope to meet you and discuss of your project. Thanks R.S

$1200 USD in 20 gün içinde
(3 Değerlendirme)

Hello, Greetings from Intevest , We have done similiar kind of work, you asked in requirement, lets chat, to discuss specific feature Hello, I’m Manish. We are team of 90 members, dedicated to serve every client, we Daha Fazla

$4000 USD in 32 gün içinde
(1 Yorum)

Hi there, I WILL DO THIS WORK AS PER YOUR REQUIREMENT AND EXPECTATIONS. With the experience of over 600+ web development projects including ANDROID , iOS , WEBSITES , WEB APPLICATIONS AND SOFTWARES . To check our ca Daha Fazla

$1125 USD in 7 gün içinde
(1 Yorum)

Dear Customer Greetings for the day!!! I'm a Senior Mobile Apps Developer having more than 8 years of Professional Experience in Android, iOS Apps Development Along with 100% satisfactory work as per Client's Requir Daha Fazla

$1125 USD in 7 gün içinde
(4 Değerlendirme)

i have allready work on voip and sip so i can build it ready to start work from now

$1000 USD in 4 gün içinde
(0 Değerlendirme)

Hi sir, I'm very interested in your project. I'm an Android mobile app professional developer. I have 7+ years of experience in mobile app development. I have read your requirements carefully and deeply. If you awa Daha Fazla

$1000 USD in 7 gün içinde
(0 Değerlendirme)

Hello,Sir. I have mobile ( Android&IOS including swift,react native) skill and backend(PHP, NodeJS,Python) skill with 5+ years experience. I have strong desire to join your project and high confidence to get passed. Pl Daha Fazla

$800 USD in 10 gün içinde
(0 Değerlendirme)

Dear Employer, I have reviewed your project details that seems to be great and I can help you out in completing that. I am a passionate PHP Developer with wide experience in Web Designing and Development. I will provi Daha Fazla

$1125 USD in 7 gün içinde
(0 Değerlendirme)

Hello Sir/Mam, We have read your project description and we are affirmative that we will able to provide you with high quality, eye- catching work for you. We have 14+ years of experience in Graphic Designs, Motion Gr Daha Fazla

$1125 USD in 7 gün içinde
(0 Değerlendirme)

#SimilarWork Hello I have carefully gone through the details shared by you on the project and I would like to share with you one of our applications in a similar domain for your reference. CHATKAZAM - Create private Daha Fazla

$1234 USD in 60 gün içinde
(0 Değerlendirme)