Hash Phone: Virtual International Phone Numbers & Cloud PBX Management Platform

Project Overview & Business Context

Hash Phone is a telecommunications SaaS platform enabling remote companies, digital nomads, and global call centers to instantly purchase virtual phone numbers across 50+ countries and configure intelligent cloud PBX call forwarding rules.

Engineering Architecture & Technical Execution

Integrated carrier VoIP APIs and webhook listeners with a responsive customer portal. Built real-time Call Detail Record (CDR) logging, minute usage billing meters, and automated subscription renewal cycles.

Key Functional Modules Delivered

• Instant global DID number purchasing with local, national, and toll-free inventory options
• Intuitive call routing rules (forward to mobile, ring group, IVR auto-attendant, or voicemail)
• Voicemail-to-Email transcription integration delivering audio MP3s directly to client inboxes
• Real-time call analytics dashboard tracking inbound volume, call durations, and missed call spikes
• Automated subscription recurring billing with credit wallet auto-recharge functionality

Measurable Business ROI & Outcomes

• Provisioned thousands of international virtual numbers with instant sub-10-second activation
• Maintained 99.95% telecom platform availability for business communication lines
• Automated 100% of recurring invoice generation and failed-payment retry handling