Encrypted Browser Calls

Encrypted Voice Calls
from Your Browser

Place the call from your browser in seconds. Nothing to install, and outbound calls need no phone number.

Product facts

  • Outbound: No dedicated number required.
  • Inbound: Requires US/Canada digital number ($2.14 to $5/month).
  • No apps: Works in Chrome, Safari, Edge, Firefox.

Product facts

  • Outbound: No dedicated number required.
  • Inbound: Requires US/Canada digital number ($2.14 to $5/month).
  • No apps: Works in Chrome, Safari, Edge, Firefox.

Product facts: Calling securely

  • Outbound calling: Call worldwide instantly. No dedicated number required.
  • Inbound calling: To receive calls in your browser, a unique US or Canada digital number is required ($2.14 to $5/month).
  • App-free: Works directly in Chrome, Safari, Edge, or Firefox.
Learn How It Works
Secure DialerEncrypted
Calls use WebRTC encryption for media and TLS for signaling. When bridging to the public phone network encryption to the PSTN gateway is maintained but the call continues on carrier networks.

How Encrypted Browser Calls Work

A concise technical overview so you can trust the call path and protections for your audio and metadata.

1

Browser Security

We rely on browser WebRTC foundations which implement DTLS SRTP for encrypted media and TLS for signaling to our servers.

2

Cloud Media Gateways

Media is encrypted to StartACall and our Twilio backbone. For PSTN calls the gateway decrypts and forwards audio to carriers while maintaining secure links to the cloud.

3

Controls and Compliance

Enable or disable recording set retention policies and control access with role based permissions. Recordings and metadata are encrypted at rest.

When end to end encryption is possible

If both parties are on StartACall web clients the audio path can remain encrypted end to end. Bridging to external phone numbers involves carrier networks and changes the security model. We surface clear indicators in the UI so you always know the protection level of each call.

Key management
Secure keys and session negotiation managed by the browser and our services.
Proven protocols
DTLS SRTP for media and TLS for signaling are used end to end.

Security Features

Enterprise controls to protect voice privacy and meet internal policies.

Transport Encryption

DTLS SRTP and TLS protect your audio and signaling traffic between the browser and cloud.

Encrypted Storage

Recordings and logs are encrypted at rest and access is restricted by roles and permissions.

Access Controls

Granular user and team permissions with audit logs for every call and recording.

Real Time Monitoring

Track active calls connection status and media metrics to detect anomalies quickly.

Frequently Asked Questions

What encryption does StartACall use?

StartACall uses standard WebRTC encryption: DTLS SRTP for media and TLS for signaling. These protocols protect audio while it travels between the browser and our cloud services.

Is a browser call truly end to end encrypted?

When both parties are connected through StartACall web clients the audio path remains encrypted end to end. When a call is bridged to the PSTN the audio exits the encrypted session at the gateway and continues on carrier networks.

Can I control recordings and retention?

Yes. Recording is optional. Administrators can enable or disable recording configure retention windows and control who can access stored recordings.

Which browsers are supported?

StartACall supports the latest versions of Chrome Safari and Firefox on desktop and mobile where WebRTC is available. For best results keep your browser updated.

Protect your voice communications

Start making encrypted calls in seconds. Sign up and enable secure browser calling without installing software.

Encrypted Voice Calls in Your Browser, No App Required

In short

Yes, you can make end to end encrypted voice calls straight from your browser with StartACall. It runs in Chrome, Safari, Edge and Firefox with no app download, no SIM card, and no phone number needed to dial out. Calls are pay as you go and billed per minute.

How browser based encrypted calling works

StartACall places voice calls through your web browser using an encrypted connection, so the audio is protected end to end from your device. You open the page in Chrome, Safari, Edge or Firefox, grant microphone access, and dial. There is nothing to install and no SIM card or account number tied to a phone, which keeps your real number private when you reach out to someone.

Because everything runs in the browser tab, the same setup works on a laptop, desktop or phone. This is useful for journalists, remote teams and anyone who wants a private line without handing over a personal phone number or downloading yet another communication app.

What it costs and how to receive calls

Outbound encrypted calls need no phone number and are pay as you go, billed by the minute, so you only pay for the talk time you use. There is no monthly fee just to make calls.

If you also want to receive inbound calls, you can add a US or Canada digital number for roughly $2.14 to $5 per month. That gives you a dedicated line people can call back on, while your outbound calls stay private and number free.

Frequently asked questions

Are the voice calls really encrypted end to end?+

Yes. StartACall uses end to end encryption on its browser calls, so your conversation audio is protected between the connected parties rather than sent in the clear.

Do I need to install an app or extension?+

No. Calling runs directly inside Chrome, Safari, Edge or Firefox. There is no app download, no browser extension and no SIM card required. You only need to allow microphone access.

Do I need my own phone number to make a call?+

No. Outbound calls do not require a phone number and are billed per minute as pay as you go. A US or Canada number, priced around $2.14 to $5 per month, is only needed if you want to receive inbound calls.

Can I use this for private international calls?+

Yes. Browser based dialing with end to end encryption works well for international and privacy focused calling, since you can reach numbers worldwide without exposing a personal SIM or local line.

Last reviewed June 2026Reviewed by the StartACall calling teamDialing rules cross checked against ITU international dialing procedures
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