Download the .PDF User Guide

Ensure your device is Compatible:
MaX UC Mobile works on:
Android phones and tablets using version 6.0 or later.
iOS devices running iOS 11.0 or later.

Video calling only works on devices that have a front-facing camera.

Find Your Password
You will need your Grid4 phone number (or email address, if you have this set up) and password to start using MaX UC Mobile. If you don’t have this information, call us at 888-474-3444. You will be prompted to change the password as part of completing the initial login process.

Download and Install the App
Find the MaX UC Mobile app in the App Store or Google Play. Tap Install to download the app to your device. Check the Terms & Conditions and tap Accept & Continue.

Tap Open on the app (if prompted, select Grid4 Communications as your Carrier). Then if not already present, enter your Grid4 Phone Number (or Email Address if you have set this up) and Password. Tap Log in. If you are having trouble logging in tap the eye symbol to show your password and check that there are no errors.

You may need to periodically update your password (a prompt appears on screen). Until you update the password, you can only receive calls and meeting invitations. Failure to update the password within the allotted time results in you being locked out of your account.

If you want to have the ability to switch calls to your own cellular network (for example, if you move to an area with poor Wi-Fi connection during a call made on MaX UC Mobile) enter your own mobile phone number and tap Continue.