How do you build a real-time translation system for offline events?

You need browser-based access for attendees, real-time speech recognition, translation services, and a low-latency delivery layer for text and audio.

How do attendees access translations during an event?

They scan a QR code, open a web page, select a language, and receive live subtitles or voiceovers on their phone.

Can speakers change languages during a session?

Yes. Speakers can switch their speaking language during the talk without restarting the session.

What technologies are used for real-time translation?

Common tools include WebSockets for real-time updates, speech recognition services, cloud infrastructure, and a scalable backend.

Who is this system designed for?

It is built for conference organizers, event agencies, and venues that host international or multilingual events.

How long does it take to build a platform like VOLO?

A focused MVP can take a few months. A full AI interpretation platform with video, recording, AI transcription, analytics, and user management takes longer. Timelines depend on feature depth and expected traffic.

Second Phone Number – VoIP App for a Full Second Line on iOS

The Challenge

A big challenge was making incoming calls work for new users. Telnyx, the voice and messaging API we used, needs each account to be configured manually. Without automation, onboarding could have been slow and frustrating.

Our Solution

We built a background setup flow that handles everything automatically. When a user subscribes, the system notifies admins via Slack and email. From there, SIP trunking, WebRTC, and iOS push credentials are configured automatically, and the account switches from “setup mode” to fully ready to use.

Users can reserve a number, manage their account, and choose the subscription plan that fits them – all from within the app.

Automated Setup

New accounts are configured in the background with no delays.

Reliable SMS

Send and receive messages without carrier dependence.

Flexible Number Management

Reserve, switch, or manage phone numbers with ease.

Subscription Options

Users can choose from multiple plans that fit their needs.

Delivery and Outcome

Second Phone Number & Texting makes managing a second line simple, fast, and reliable. Automating backend setup ensures a smooth experience for both users and admins, turning a complex VoIP system into a practical, everyday tool.