> For the complete documentation index, see [llms.txt](https://docs.pritunl.com/kb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pritunl.com/kb/zero/endpoint/verify-phone.md).

# Verify Phone Number

Pritunl Zero provides SMS and phone call alerts with endpoint monitoring. A Pritunl Zero subscription is required for the service and each phone number must be verified.

To verify the phone number call `206-202-9712` and press 1 when prompted. To remove the number verification call the same number and press 0 when prompted. The process is the same for configuring SMS or phone call alerts. Currently only US numbers are supported.

After the number has been verified add the number in the *Devices* section of the user settings. Then click *Send Test Alert* to verify it is functioning.

Alerts are matched based on roles and levels. First one of the users roles must match one of the endpoints roles. Then one of the alerts roles must match one of the endpoints roles. The user device must also be configured to handle the alert level.


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