
Closed
Posted
Paid on delivery
I already lease DID numbers from Telnyx and have full access to their SIP, voice, SMS and WhatsApp APIs. Now I need you to turn those raw services into a polished, customer-ready solution that works everywhere—on IP desk phones, on iOS and Android, and through a browser-based portal built for multiple tenants. Web portal The portal must support true multi-tenant separation. Each tenant should manage its own users, assign available numbers, view usage and CDRs, run real-time analytics, and download invoices. A flexible billing engine is essential, with automated invoicing and payment collection as well as dashboards that surface calling, SMS and WhatsApp metrics at a glance. Mobile apps I need companion apps for both iOS and Android. They should register to the same Telnyx back-end so end users can place and receive VoIP calls, send and receive SMS, and handle WhatsApp messaging from their assigned DID, all with push notifications and reliable background VoIP handling. IP phone compatibility Standard SIP phones on the same tenant account must offer identical functionality—high-quality calling plus SMS and WhatsApp message syncing—so an office can move seamlessly between desk phone and mobile. Primary deliverables • Responsive multi-tenant web portal with user management, billing/invoicing, and reporting/analytics • Native or high-performance cross-platform apps for iOS & Android providing calling, SMS and WhatsApp features • SIP provisioning and documentation so common IP phones can be auto-configured • Clean, well-documented code that wraps Telnyx APIs and exposes any extra micro-services you create • End-to-end test plan proving call quality, messaging reliability, tenant isolation and correct billing calculations • Deployment scripts/instructions so the stack can be rolled out to cloud infrastructure of my choice If the scope is clear to you and you have demonstrable experience with VoIP, Telnyx (or similar providers), push notifications, and multi-tenant SaaS architecture, let’s discuss timelines and milestones.
Project ID: 40673260
34 proposals
Remote project
Active 3 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
34 freelancers are bidding on average ₹87,440 INR for this job

Hello, I can help you with "Multi-Tenant VoIP Platform Development" as per your given project description. We can discuss more in detail during a chat conversation when you are available. I've worked on many PHP projects in recent times. So I am confident on achieving your expected Goals. Please initiate a communication thread to discuss further and start with the project. ⭐ 5.0/5 from a recent client: "A more professional version: “Excellent work! The job was completed within the committed timeline. Great quality, professionalism, and timely delivery. Highly appreciated and recommended.”" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹45,000 INR in 10 days
8.0
8.0

As a seasoned software developer with over 7 years of experience, I've successfully completed 200+ projects similar in complexity to your multi-tenant VoIP platform development. My qualifications range from API and third-party integrations to developing custom web and enterprise applications, including mobile apps for both iOS and Android. Additionally, my familiarity with Telnyx and push notifications, coupled with my expertise in VoIP and multi-tenant SaaS architecture, make me an ideal candidate to execute this project for you.
₹70,000 INR in 7 days
7.4
7.4

As the founder of SoftwareLinkers, I have dedicated my career to building secure, scalable, and data-driven web applications. I've been in the business long enough to understand that it's not just about coding; it's about understanding your unique business needs and devising tailor-made solutions. That being said, your project is right up my alley. My extensive experience with PHP & MySQL backend development for scalable applications, RESTful API integration with mobile and web platforms and multi-tenant SaaS architecture would be invaluable to turn your raw services into a polished solution for multiple tenants. Additionally, my skills with React.js / Flutter app development are perfect for creating the iOS and Android companion apps you need for your service. I understand how important smooth integration between these platforms is, and as such, am confident in my ability to build high-performance cross-platform apps with robust functionality.
₹72,000 INR in 22 days
6.5
6.5

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native and for web and backend on react js and node js, Python Django. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹50,000 INR in 25 days
6.6
6.6

With a proven background in both web and mobile app development, including extensive experience with Android and iOS platforms, I am confident in my ability to create a robust, user-friendly, and highly functional VoIP solution for your Telnyx API-integrated communications platform. My expertise using React Native means that I can create crisp, high-performance compatible apps for both platforms, ensuring your clients can make efficient VoIP calls and manage their communications effectively. I'll design a dynamic and responsive web portal that bears true multi-tenant separation - allowing each tenant to manage their own users, assign numbers, view usage metrics and run real-time analytics. My mastery over PHP coupled with my familiarity with advanced billing engines will guarantee an efficient automated invoicing system is put in place that ensures correct billing calculations. Furthermore, I have an in-depth understanding of multi-tenant SaaS architecture which I will bring into play as I develop your platform. My work is characterized by clean and well-documented code which aside from facilitating easier future updates also enables exposure of any extra micro-services that may be necessary.
₹65,000 INR in 18 days
5.4
5.4

With over 5 years of experience in full-stack web and mobile app development, I am not only equipped with the skills you need for this project, but also the passion to make your concept a reality. My proficiencies include working on complex API integrations, building robust database management systems, performing performance optimizations, and crafting UI/UX-friendly platforms—and I am excited to put all of them to work for your Mufti-Tenant VoIP Platform Development. Having worked on multiple SaaS architecture projects in the past, I understand the complexities involved with multi-tenant segregation, as well as automated invoicing requirements that ensure smooth operations for each tenant. Additionally, my expertise in working with push notifications alongside my profound knowledge of Telnyx APIs give me a unique advantage for developing reliable cross-platform iOS and Android apps. My clear and concise communication style will ensure we meet your timelines and milestones effectively. The major deliverables you have outlined are indeed clear to me and I'm confident that my proven track record of clean code, reliable app deployment processes and unwavering commitment towards quality will be an asset that meets and surpasses your expectations.
₹56,250 INR in 7 days
5.4
5.4

As an adept developer with extensive experience in building next-generation communication platforms, I am excited about the possibility of turning your raw Telnyx services into a cutting-edge, multi-tenant VoIP solution. With expertise in Android and iOS development, my team at Web Crest can create companion apps that not only offer high-quality calling but also smooth SMS and WhatsApp message syncing. One of our biggest strengths is our proficiency in implementing sophisticated SaaS architectures. We fully understand the challenge of true multi-tenant separation, and we're well-equipped to build an intelligent web portal that will allow your various tenants to efficiently manage their users, assign numbers, track usage, and profit from real-time analytics. Our billing engine ensures automated invoicing, payment collection, and easy access to critical call and messaging metrics for sound decision-making. Our client-centric approach goes beyond just delivering a solution. We are dedicated to providing scalable, secure, and maintainable solutions tailored exactly to your needs. With clean documentation and thorough end-to-end testing plans to ensure quality call handling, messaging reliability, tenant isolation, and accurate billing calculations; we assure you of a future-ready product that surpasses your expectations. Choose Web Crest for a VoIP platform that unlocks seamless communication across all devices while making management simple and efficient!
₹75,000 INR in 5 days
4.8
4.8

For your Telnyx-based platform, I’d put a tenant-aware communications layer between the apps and Telnyx APIs so SIP, voice, SMS, WhatsApp, billing, webhooks, and analytics stay consistent across web, mobile, and desk-phone workflows. I’d structure the backend around strict tenant isolation, DID/user provisioning, normalized Telnyx webhook events, CDR storage, usage metering, invoicing, and push-notification services. The two priorities here are integrations and scalability: wrapping Telnyx behind clean internal services means new channels, pricing rules, or real-time features can be added without rewriting each client, while reliable event processing reduces billing mismatches and support issues. One point I’d clarify early: standard SIP phones can handle calling natively, but SMS and WhatsApp are not generic SIP capabilities. I’d keep those synchronized through the portal/mobile layer unless the selected phone hardware exposes suitable messaging support. I’ve built FileChannels with mobile apps, WebRTC/Agora calling, PubNub messaging, Stripe billing, CRM sync, and real-time communication workflows, which is closely aligned with the architecture this platform needs.
₹56,250 INR in 7 days
5.0
5.0

As a top-ranked software engineer, my core skillset has always revolved around developing high-performing applications for a variety of platforms. I have deep experience in mobile app development for both iOS and Android, as well as web development using languages such as PHP- all skills that are perfectly aligned to the needs of your Multi-Tenant VoIP Platform Development project. Moreover, my familiarity with cloud technology assures you of your solution's scalability and long-term performance. Your project's heavy reliance on APIs and micro-services can be perfectly managed by me, as I've consistently delivered clean and well-documented code throughout my career. Additionally, having worked extensively with Telnyx (and similar providers) APIs, I will ensure a seamless integration with their services to make every function on your application work just the way you need it to. Lastly, my sincere belief in adopting a meticulous approach in building end-to-end test plans will aid not only in proving call quality, messaging reliability, and tenant isolation but also guarantee accurate billing calculations. Plus, I'll create comprehensive deployment scripts /instructions to simplify the whole process for your team. To sum up, whether it's about offering an efficient multi-tenant web portal or SIP provisioning for IP phones, my proficiency in these areas makes me the right fit for you're looking for. Let's connect!
₹56,250 INR in 7 days
4.3
4.3

I've spent 20+ years in full-stack and telephony, Twilio, VAPI and provider SIP, voice and SMS APIs including Telnyx, multi-tenant SaaS, and iOS and Android with reliable background VoIP and push, so this stack is my daily work. The hard part is not the Telnyx API calls, it is the three things that break in production: true tenant isolation so numbers, users, CDRs and billing never leak across tenants; background VoIP and push that ring when the app is killed; and a billing engine whose CDR-to-invoice maths is correct to the cent. My build: - Multi-tenant web portal: per-tenant users, number assignment, usage and CDRs, real-time calling/SMS/WhatsApp analytics, and invoices. - A billing engine: rated CDRs, automated invoicing and payment collection, dashboards. - iOS and Android apps registered to your Telnyx back-end for calls, SMS and WhatsApp from the assigned DID, with CallKit/ConnectionService and push for background calls. - SIP provisioning and auto-config docs so standard desk phones on a tenant get the same calling/SMS/WhatsApp. - Clean code wrapping Telnyx, an end-to-end test plan for call quality, tenant isolation and billing accuracy, and deploy scripts for your cloud. You get one engineer across portal, apps, SIP and billing, so tenants stay isolated and desk-phone-to-mobile is seamless, tested before handover. One thing to confirm: native Telnyx mobile SDK or a shared cross-platform codebase, and WhatsApp via Telnyx or the Cloud API? I can start right away.
₹45,000 INR in 45 days
4.6
4.6

Vijayawada, India
Payment method verified
Member since May 31, 2022
₹1500-12500 INR
₹1500-12500 INR
$30-250 USD
₹12500-37500 INR
$5000-10000 SGD
₹12500-37500 INR
$250-750 USD
$30-250 USD
₹750-1250 INR / hour
$750-1500 USD
₹600-1500 INR
₹12500-37500 INR
₹600-1500 INR
₹1500-12500 INR
$750-1500 USD
$750-1500 USD
$500-3000 AUD
$30-250 USD
$250-750 USD
₹12500-37500 INR
₹1500-12500 INR