Multi-Tenant VoIP Platform Development
Employer not named by the sourceRemote
Frontier is not the employer and does not collect applications.
About this role
PHP, Mobile App Development, iPhone, Android, VoIP, Web Development, iOS Development, Billing, API Development, SIP · 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 des