maarkn.dev
voip-platform
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Backend · APIs· 2024Internal

VoIP Platform

Calls, recordings, transcriptions and dynamic billing in a single VoIP product wired into the company's CRM.

Private project

Source code is private — happy to walk a recruiter or hiring panel through it on a call.

What I did

Backend lead — designed the architecture, built billing rules, real-time provisioning of extensions and DIDs, audio optimization, multitenancy and team management.

Key features

  • Internal and national calls with recording and transcription
  • Dynamic billing rules per team and tenant
  • Real-time provisioning of extensions and DIDs
  • Multitenancy, role-based features and usage analytics
  • Audio optimization to reduce bandwidth without losing quality

A new vertical for a Brazilian CRM company: a VoIP product that doesn't feel bolted on. Calls, recordings, transcriptions and dynamic billing live next to the customer record, so a sales rep can pick up where the last conversation ended.