Skip to content
Cloud Voice Documentation

Restrict Access to Administrator Portal by IP Addresses

As an administrator, you can tie administrator portal access to a list of trusted IP (Internet Protocol) addresses. Once the restriction is active, administrator logins are accepted only when they originate from an address you have approved.

Set up the IP restriction

Section titled “Set up the IP restriction”

  1. Log in to the Cloud Voice Dashboard at https://voice.izt.cloud and click Login to open your phone system’s management portal with full administrator access, then open Security > Security Settings > Security Options.

  2. Enable Enable IP Restriction for Administrator Login.

    The Security Options page with the administrator login IP restriction turned on

    The portal warns you that your current IP address is not yet on the allowed list.

  3. Add the addresses that should be permitted:

    Dialog for entering an allowed IP address and its subnet mask

    1. Click Add.
    2. Enter the allowed IP address along with its subnet mask. The subnet mask sets how wide the rule is: use 255.255.255.255 to allow a single address, or a broader mask to allow a whole range.

  4. Click Save.

What happens after you save

Section titled “What happens after you save”

Only the IP addresses on your list can reach the administrator portal, and the change applies the next time an administrator signs in. Anyone who is already signed in keeps their current session until they log out.

An administrator who tries to connect from an address that isn’t allowed sees a different message depending on the URL used:

  • Signing in at PBX domain name/admin/login returns a page-not-found error.

    Cloud Voice, page-not-found error shown when a restricted address opens the admin login URL

  • Signing in at PBX domain name/login returns the message “Your current IP address is restricted”.

    Cloud Voice, login page reporting that the current IP address is restricted