Must have

100%
As a proton subscriber, this has been a missing piece to my security profile. The other advantage is to be able to receive and archive text messages without being tied to a phone.
An API that allows automated services to consume incoming messages and execute actions would be a great P1 service.

Have a Proton version of google voice - a standalone number that can be used for both calling and texting. Ever since they started cramming gemini down our throats, there are tens of millions of google workspace users who would LOVE to switch to Proton's suite but can't because we need a google voice type feature. Add in all the general users who clearly want it too and I can't imagine this type of product wouldn't be a massive moneymaker for Proton.

Having a VoIP - would be nice, especially if you don't want to give your real phone number to people you dont truly know or trust! or you just very causous on giving your number out. also using VoIP for big winnings, for example lottery winnings. also it would be nice to have for business use cases, like if messages are really confidential like any government, banking and work related sensitive data that employees need that customers rely on keeping away from the public and keeping business safe and running smoothly also its built right - social engineering would be harder to do. if also used for securing business like dealing with financial gains, as recent examples like cassinos will be able to securely chat with their I.T and such so bad actors cant impletrade and how their securty roles are! - what you guys think.?

Very important!

would be great to sign into instagram or things like that, for a few sms a month

Please add this mask my phone number or even offer a text/call plan with SMS ability. I would pay for this service as well.

I highly support this feature request. I suggest that the service also includes an option to receiving SMS.

That would be essential because there are so many apps that rely on 2FA via SMS.

I’d like to propose a feature that extends Proton’s privacy ecosystem: embedded phone number protection, similar to how email aliases currently work in Proton Mail and comparable to Mozilla’s Firefox Relay.

Allow users to generate proxy phone numbers that forward calls and SMS to their real number—without exposing it. These numbers could be:
- Created on demand (like email aliases)
- Managed within the Proton dashboard
- Enabled/disabled or deleted anytime

Key Use Cases
- Signing up for services without sharing your real number
- Protecting against spam, tracking, and data leaks
- Temporary numbers for marketplaces, travel, or one-time verifications

Features
- Seamless integration with Proton Pass
- Labeling and organizing numbers (like aliases)
- SMS forwarding (and optionally call forwarding or voicemail)
- Auto-expiration or manual deactivation

+1

Overview

I am proposing the development of a Phone Number Alias feature (similar to Proton Pass email aliases) that allows users to generate secondary, virtual phone numbers. This feature would serve as a privacy shield, allowing users to keep their primary mobile numbers private while maintaining full functionality for account security and essential communications.

Key Functionality

Two-Step Verification (2FA): The primary use case is providing a secure, private number for online account profiles and 2FA codes, reducing the risk of SIM-swapping attacks on a user's primary line.

Inbound Focus: To prevent platform abuse, these numbers would be restricted to receiving calls/SMS and responding to incoming threads only, rather than initiating outbound cold calls.

Granular Control: Users should have the ability to mute, block, or "burn" (delete) an alias at any time.

Data Breach Mitigation: In the event of a third-party data breach, the user’s real identity remains protected. If an alias is leaked to bad actors or telemarketers, it can be deactivated without the hassle of changing one's primary legal phone number.

The Value Proposition

As data breaches become more frequent, the personal phone number has become a "universal identifier" used by advertisers and hackers alike. By offering virtual aliases, Proton can provide a comprehensive privacy ecosystem that protects not just a user’s email and files, but their cellular identity as well.

This is really a critical feature! I've been looking for a virtual phone number service for weeks, and there doesn't seem to be one that is actually safe/private.

I would love this feature, it would be a very welcome addition to Proton Pass. Feels like I’m quite anonymous online wrt e-mail adresses used, but absolutely not with my phone number, and it’s needed in so many places :(.

Ya vote !!!

This is totally possible and would require some work but I don't think it would be a huge undertaking. We see a lot of competitors out there already doing a 'Relay' concept. Where those providers forward messages and emails to user accounts / phones. Proton already does this with emails and email aliases. We would just need the same relay concept for sms at least, I don't know about actual calling and voice conversations

We really need this feature today. I am in France and scammers call and text me every day trying to rip me off. We know very well that this is due to data leaks and the sale of our data. This would no longer happen if we could hide our phone numbers.
Firefox Relay does this, but only in Canada and the United States...

i am so tired of spam texts and having to give away my phone number to every service known to man

This right here, YES!

Yes, I think this is a vital feature for privacy!

I came to the forum to request this specific feature. It would be great to have phone number masking available to block unknown and unwanted texts and calls.