2nd Number: VoIP Business Telephony App
Project Overview
A secure, HIPAA-compliant business phone and communication application providing virtual phone numbers, texting, voicemail, and call recording for professionals.
The Challenge
Achieving crystal-clear voice calls over weak cellular networks, keeping power consumption minimal while waiting for incoming VoIP calls, and ensuring full HIPAA data compliance.
The Solution
Integrated WebRTC and SIP stacks directly with React Native. Built a custom native push notification handler to wake the app instantly for incoming calls without draining battery.
The Outcome
Trusted by over 500K+ users globally. Successfully certified as HIPAA and HITECH compliant, serving thousands of healthcare and legal professionals.
Want a deep dive into the architecture of 2nd Number: VoIP Business Telephony App?
Read our full engineering breakdown covering challenges, system architecture, and production scale metrics.
Technologies Used
Build Something Like This?
Let's talk about your project. Book a free consultation and we will figure out the right approach together.