Multi-Tenant VoIP Platform Development
Budget / Salary₹37,500–75,000
TypeFreelance project
LocationRemote
Posted2 hours ago
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.
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.
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