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Great question — and we love that you ask it. Blueprint Softphone is a "pass-through" software utility. We earn revenue from the Pro subscription ($4.99/month or $49.99/year) for users who want unlimited phone numbers. The free tier is fully functional with up to 2 numbers, forever. Your Twilio calls are billed directly by Twilio at their published rates. We never add a fee to call costs, and we never will. Our business model is built on selling great software, not on charging you more for telephony that costs us nothing extra.

Every other Twilio softphone or Chrome extension we've seen stores your raw Account SID and Auth Token — credentials that give full access to your entire Twilio account. Blueprint Softphone is fundamentally different: during the 60-second setup wizard, we create a scoped API key that can only do what the softphone needs. Your master Auth Token is used once during setup and never stored. This is a security-first architecture that no competitor has implemented.

Yes — this is one of our strongest differentiators. Blueprint Softphone uses Chrome's Offscreen Document API for background listening, which keeps your phone line active even when the extension popup is closed or Chrome is minimized. When a call arrives, you get a desktop notification, audible ringtone, taskbar flash, and the softphone auto-opens. Most competing extensions die the moment you close the popup.

No — and this is a deliberate design choice. Even though Blueprint Softphone is a Chrome extension, it is NOT a sidebar that gets pinned inside your browser, taking up your valuable Chrome real estate and repeated on every tab. Instead, it opens as a free-floating window you can minimize, move around, resize, or close completely. Your calls keep running in the background regardless. Think of it as a standalone app that happens to live in Chrome.

Yes — Blueprint Softphone connects directly to your own Twilio account. This is how we achieve zero markup: your phone numbers and call costs are billed by Twilio to you, not routed through us. Setting up a Twilio account is free and takes about 5 minutes. You can use your existing numbers or buy new ones from Twilio's number marketplace at cost ($1.15/month for a US local number).

Click-to-dial automatically scans every web page you visit for phone numbers and adds a small dial icon next to each one. Click the icon to instantly call that number through your Blueprint Softphone — no copy-paste, no switching apps. It also intercepts tel: links so they route through your softphone instead of your system dialer. You can right-click any selected phone number to dial it too. It works with dynamically loaded content in React, Angular, and other SPA frameworks.

Yes — all three. Unlike carrier-specific softphones that lock you to one use case, Blueprint Softphone connects to any Twilio number in your account. Use it for your main business line, a personal side number, or dedicated marketing tracking numbers. The free tier supports up to 2 active numbers (you can swap them anytime); the Pro subscription at $4.99/mo (or $49.99/yr) supports unlimited numbers.

The native iPhone and Android apps are currently in development. Pro subscribers will have access to the mobile apps when they launch — it's included in the $4.99/month Pro subscription at no extra cost. The mobile apps will include native push notifications so you never miss a call, cross-device sync for contacts and call history, and geo-fencing to automatically route calls based on your location. Join the waitlist on our Platforms page to be notified the moment it's available.

A2P 10DLC is a carrier-mandated registration system for business text messaging in the US. Without it, your SMS messages are silently filtered or blocked — you won't even know they aren't delivered. Blueprint Softphone detects unregistered numbers automatically and warns you inside the app, linking directly to Twilio's registration page. Most other apps hide this compliance headache until after you've paid.

Absolutely. You can port your existing business number to Twilio in 5–15 business days. Your clients never notice anything changed — except that you stopped paying $25/month. Twilio handles the porting process, and Blueprint Softphone walks you through it. Once ported, your number works exactly the same way in the softphone.

Hosted platforms like JustCall and Kixie charge $19–$35/month per user and lock you into their infrastructure. Blueprint Softphone uses your own Twilio account directly — no middleman, no markup, no vendor lock-in. You get the same features (voicemail, call routing, SMS, click-to-dial) on the free tier with 2 numbers, or for $4.99/mo ($49.99/yr) with unlimited numbers. Your data stays on your device and your Twilio account, not on someone else's servers.

The free tier is fully functional with no artificial limitations on features — you get full voice calling, SMS, voicemail, click-to-dial, background listening, call forwarding, and the built-in contact manager. The only restriction is that you can connect up to 2 Twilio phone numbers at a time (you can swap them whenever you want). No credit card required, no time limit. If you need more than 2 numbers, the Pro subscription is $4.99/month ($49.99/year) for unlimited numbers and includes the mobile app when it launches.

This was actually a key reason I built Blueprint Softphone. Traditional carrier softphones often fail over WiFi or when you change networks. Blueprint Softphone uses Twilio's WebRTC infrastructure — the same technology that powers enterprise video conferencing platforms. Calls route over any internet connection with no geographic restrictions. I've personally tested it from hotels, airports, and coffee shops with consistent results.