Both let visitors talk to your team. But they're not the same product. Here's the honest 5-minute breakdown of when to use each.
| Feature | WebCallHub | Twilio Voice |
|---|---|---|
| Browser-to-browser calling (WebRTC) | ✓ native | ✓ via Voice SDK |
| Phone-number dialing (PSTN) | ✗ | ✓ core feature |
| SMS routing | ✗ | ✓ |
| Setup time | 5 minutes (1 script tag) | 1-3 days (build agent UI, configure) |
| Pricing model | Flat €0-€99/mo | Per-minute + per-number + per-msg |
| Predictable cost ceiling | ✓ | No (volume-dependent) |
| Agent UI included | ✓ built-in | Build your own |
| Visitor sees your site name (not a number) | ✓ | Requires CNAM setup |
| Live chat included | ✓ same widget | Separate Twilio product |
| EU data residency | ✓ Hetzner Helsinki | EU region available, US default |
| GDPR-first design | ✓ | ✓ with config |
| AI transcription / call summary | ✓ built-in (Whisper/Deepgram) | Separate Twilio Conversations |
| Open WebRTC standard | ✓ Asterisk-based | ✓ |
| Integrations marketplace | Slack, email, webhooks | ✓ huge ecosystem |
| Engineering effort to maintain | ~0 (managed) | Ongoing (you maintain agent UI, infra) |
Twilio's per-minute model sounds cheap until you actually use it. Here's the math for a typical small support team (10 agents, 50 calls/day, 4-minute average):
Note: At very high volume (10,000+ calls/day), Twilio's per-minute economics may beat us, especially if you need PSTN. We're not trying to be every tool — just the easiest path to "let visitors call your website".
<script src="https://webcallhub.com/embed/widget.js"></script>Twilio is incredibly powerful — but you pay for that power in engineering hours.
For most small-to-mid teams: yes, by 60-90%. A 50-call/day support team typically pays €2-5K/year on Twilio (including engineering time) vs €0-€99/month flat on WebCallHub. At very high volume with PSTN needs, Twilio can win.
Pick Twilio when you need: outbound dialing to real phone numbers, SMS at scale, deep telephony customization (carrier-level recording, SIP trunks), or you're building a full contact-center product from scratch. WebCallHub is browser-to-browser only.
WebCallHub: 5 minutes (one script tag). Twilio: 1-3 days minimum to wire up the Voice SDK, build agent UI, configure ICE/STUN/TURN, set up phone numbers, and handle call routing.
No. 100% browser-based. Visitors click a button on your site, you accept the call in your browser. No phone numbers to rent, no SIP trunks. If you need traditional PSTN, Twilio is the right tool.
Yes — most teams swap their existing "Call us" Twilio integration for the WebCallHub widget in under an hour. Keep using Twilio for outbound dialing or SMS; use WebCallHub for inbound website calls. Many teams use both.
Both use WebRTC under the hood for browser audio. Quality depends on each user's network and audio hardware. WebCallHub uses Opus codec at 48 kHz (best in class). Twilio uses similar. In our tests, audio quality is indistinguishable.
No credit card. No phone numbers. Free forever for one agent.
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