Blueprint Softphone is a professional softphone built on Twilio by a 35-year global enterprise IT veteran. It provides direct access to your Twilio account with zero markup on call costs and a security-first architecture: credentials are never stored on Blueprint servers, billing permissions remain entirely within Twilio, and no third party can access your account through the platform. Available as a Chrome extension, web app, and upcoming mobile app. Free for up to 2 phone numbers; Pro subscription from $4.99/month.
Your Twilio Account.
Our Professional Softphone.
Pay Twilio wholesale rates ($1.15/mo), not $25/mo. Your credentials go directly to Twilio — never to us.
Blueprint Softphone gives you direct access to your Twilio account with 0% markup and zero credential storage. Enjoy a professional, reliable, and secure calling suite on your own terms.
No One Reaches Your Account Through Us — Including Us
- Your Twilio login travels directly to Twilio — it never passes through our servers and we never store it. The best security is never having the information in the first place. There is nothing here to hack.
- No one can touch your Twilio account through our platform — not to make calls, buy numbers, send messages, or run up charges of any kind. We can't spend your money, and we can't give anyone else the ability to. Our platform is a complete firewall between itself and your Twilio billing.
- By default, your call audio goes directly to Twilio — we don't touch it. Any features that process your audio (like voicemail transcription) will always be opt-in, clearly disclosed, and off by default. You decide if and when we ever hear a call.
- If Blueprint disappeared tomorrow, your Twilio account would be completely unaffected. We never hold any piece of it.
Works across your devices
One Ecosystem. Every Screen You Work From.
Your calls, contacts, and message threads — available wherever you are. The Chrome extension and Web App are live now. Native mobile is on the way.
Chrome Extension
Not a sidebar. Blueprint runs as a hidden background listener in Chrome — your line stays active even when the window is closed. It pops open automatically when a call arrives.
- Background listener — active even when closed
- Auto-opens on incoming calls
- Instant click-to-call
- Voice, SMS + Voicemail included
Web App
A dedicated, full-screen communication hub. Perfect for call-center workflows, power users, or anyone who wants a focused softphone experience.
- Full-screen dial + message interface
- Multi-number management panel
- Works on any modern browser
iPhone (iOS)
Native iOS app with push notifications so you never miss a call, cross-device sync for contacts and history, and geo-fencing to auto-route calls based on your location.
- Native push notifications — never miss a call
- Cross-device contact & history sync
- Geo-smart availability routing
Android
Native Android app with the same zero-markup Twilio connection. Push notifications, cross-device sync, and all the calling features you rely on — in your pocket.
- Native push notifications — never miss a call
- Cross-device contact & history sync
- Geo-smart availability routing
A Full Phone System — Not a Toy Dialer
Voice calling, SMS, voicemail, click-to-dial, contact management, and carrier compliance — all included in the free tier. Here's everything you get on day one.
- Make and receive business calls from any browser tab — no desk phone needed
- Call back from the same number your customers already know
- Built natively on the Twilio Voice SDK for carrier-grade call quality
- Full in-call controls: hold, mute, and DTMF keypad for IVR navigation
- Multiple phone lines — use any of your Twilio numbers as caller ID
- Caller ID lookup — see who's calling before you answer
- Auto-answer mode for high-volume workflows
- Dead-zone proof — works anywhere you have WiFi or broadband
- Background listening — your line stays active even when the softphone is closed
- Auto-open on ring — the softphone pops up when a call arrives
- Desktop notifications with caller info, visible from any app
- Taskbar attention and icon blinking — visual alerts you can't miss
- Audible ringtone plays through your PC speakers
- Click the notification to answer — one-click pickup from anywhere
- Call forwarding — route unanswered calls to your cell or any number
- Voicemail with AI greeting — text-to-speech powered by Amazon Polly
- Voicemail with custom recording — use your own .mp3 or .wav greeting
- Visual voicemail inbox — browse, play, and manage recordings in-app
- Shared mailboxes — route multiple lines to the same voicemail
- One-click deployment — voicemail and forwarding deploy automatically
- Send and receive SMS from your business numbers
- Threaded conversations — messages organized by contact
- Real-time delivery via Twilio Sync — zero polling
- Multi-number support — text from any provisioned number
- Message status tracking — Sending, Sent, Delivered, Failed
- Unread badges — per-thread counts so you never miss a message
- Automatic phone detection — scans every page and adds a dial icon
- tel: link interception — calls route through your softphone
- Right-click to dial — select any number, right-click, call instantly
- Works with SPAs — detects numbers in React, Angular, and dynamic content
- Add, edit, and delete contacts with name, company, and email
- Contact labels — Mobile, Work, Home, and Other
- Quick-save unknown callers as contacts in one tap
- Smart caller ID — incoming calls display the saved contact name
- Search and filter by name, company, or number
- Dark and Light themes with instant switching
- Phone line aliases — give friendly names to your Twilio numbers
- Configurable notifications — toggle calls, SMS, sounds independently
- Per-line routing controls — enable/disable inbound per number
- Export settings — backup your configuration as JSON
- Debug mode — verbose logging for troubleshooting
- Chrome Manifest V3 — the latest, most secure extension platform
- Scoped API key authentication — never stores your Auth Token
- Encrypted calls — all voice traffic via WebRTC (SRTP)
- Proactive token management — automatic 25-minute refresh cycle
- Firebase Authentication — optional sign-in gate for teams
- A2P 10DLC detection — warns you if numbers aren't registered
- STIR/SHAKEN guidance — instructions to verify your outbound calls
Full technical breakdown in our Security Architecture section
50+ features included in the free tier — no paywalls on core functionality.
Start with the Free Tier
We Can't Be Hacked For Your Credentials.
We Don't Have Them.
This isn't a marketing claim — it's how the system is designed. Every assertion below comes with exact verification steps so you can confirm it for yourself.
Your credentials never touch our servers.
When you log in, the extension authenticates directly to Twilio's API from your browser. Your Account SID and Auth Token go straight to Twilio — no hop through Blueprint infrastructure. The best security is never having the information in the first place. There is nothing here to hack.
How to verify this
Open Chrome DevTools → Network tab while logging in. Every auth request will point to api.twilio.com — never to a Blueprint domain.
We can't spend your money. Neither can anyone who attacks us.
No one can touch your Twilio account through our platform — not to make calls, buy numbers, send messages, or run up charges of any kind. We can't spend your money, and we can't give anyone else the ability to. Our platform is a complete firewall between itself and your Twilio billing.
How to verify this
Check your Twilio Console → API Keys. You'll see exactly what permissions were granted. We only request the scopes needed to make and receive calls — nothing more.
Your call audio goes to Twilio by default — not through us.
Voice traffic uses Twilio's WebRTC stack, encrypted in transit via SRTP. Blueprint routes call signaling — not your media. Any future features that process audio (like voicemail transcription) will always be opt-in, clearly disclosed, and off by default. You decide if and when we ever hear a call.
How to verify this
Open chrome://webrtc-internals while on a call. All media stream endpoints will show Twilio's infrastructure — not Blueprint's.
Our code is open to inspection. Always.
Chrome extensions are inherently auditable. Every line of code running in your browser can be reviewed at any time. If Blueprint disappeared tomorrow, your Twilio account would be completely unaffected — we never hold any piece of it.
How to verify this
Open chrome://extensions → Blueprint Softphone → click 'View source' to read every line of code running in your browser.
Technical specifications
Every Core Feature. Two Price Points. Zero Hidden Costs.
Both tiers include every core feature. The only difference is how many Twilio numbers you can connect. Your call costs go directly to Twilio at their published rates — Blueprint Softphone adds nothing on top.
Free
Everything you need to get started. No credit card. No expiry.
+ Twilio usage at their published rates
- Up to 2 Twilio phone numbers
- Swap numbers anytime
- Voice calling (VoIP)
- SMS messaging
- Voicemail with AI or custom greetings
- Click-to-dial from any website
- Background listening — rings when Chrome is closed
- Built-in contact manager with caller ID
- Call forwarding & routing
- A2P 10DLC compliance warnings
- Dark & Light themes
- Chrome extension + Web App
- 0% markup on Twilio costs
- Unlimited numbers (Pro only)
No credit card · No porting required · Keep your existing carrier
Pro
Unlimited numbers. Includes mobile app when it launches.
Just $4.17/mo — save 17%
+ Twilio usage at their published rates
- Everything in Free
- Unlimited Twilio phone numbers
- iPhone & Android app (when available)
- Cross-device sync (desktop ↔ mobile)
- Priority support
- All future feature updates
- Visual voicemail inbox
- Per-line routing controls
- Auto-answer mode
- Settings export & backup
- 0% markup on Twilio costs
JustCall charges $19/mo, Kixie charges $35/mo. Blueprint Softphone Pro is $4.99/mo — and you keep 100% control of your Twilio account with zero markup on calls.
Cancel anytime. No contracts. Secure payment via Stripe.
How We Make Money
Blueprint Softphone is a "pass-through" utility. We earn revenue from the Pro subscription ($4.99/mo or $49.99/yr). Your Twilio calls are billed directly from Twilio to you at published rates — we never touch that money, and we never add a fee. The free tier is fully functional with 2 numbers, forever. No hidden charges. No surprise markups.
What Does Twilio Cost?
A US local phone number is $1.15/month from Twilio. Outbound calls cost ~$0.014/min. Inbound calls are ~$0.0085/min. These are Twilio's published rates — Blueprint Softphone adds nothing on top. Most users spend $2–5/month on Twilio usage.
10 Years
REI Full-Time
Brent Pope
Founder & Developer
- 35 years managing global IT — multinational company
- Managed global IT operations across multiple countries
- Full-time real estate investor — 10 years
- Uses Blueprint Softphone daily for his own deal flow
"So I built what I needed: a direct Twilio client that sends 100% of the call cost to Twilio and zero to anyone else. No middlemen. No markup. Just honest, transparent software."
I Built the Tool I Wished I Could Have Bought.
I spent 35 years managing global IT for a multinational company — buying enterprise software, building it, and leading the teams who built it. I know what separates tools that teams trust from tools that generate support tickets at 2 AM. The answer is always the same: simplicity for the user and bulletproof reliability. Nothing more, nothing less.
I'm also a full-time real estate investor with 10 active phone lines — seller leads, buyer lists, contractor hotlines, marketing campaigns. When I discovered the $1.15 vs $25 gap, I didn't complain about it. I built the fix.
Blueprint Softphone is the tool I use every single day to run my own deal flow. It's not a side project. It's not a startup. It's a professional tool built by someone who depends on it — and who has spent a career demanding software that doesn't fail.
Simplicity First
The best software gets out of your way
Bulletproof
35 years of enterprise IT reliability
No Middleman
Your Twilio rates. Always. 0% markup.
Frequently Asked Questions
We believe in radical transparency. No hidden answers here.
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.
Still have questions?
Contact SupportReady to Run Your Business Phone the Right Way?
Direct Twilio connection. Zero markup on every call. Free for 2 numbers — Pro from $4.99/mo. Set up in under 60 seconds.
No credit card required · Your credentials go to Twilio, not us · Cancel anytime