MaX UC Mobile App Instructions

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MaX UC Mobile Instructions

MaX UC allows you to make or receive calls from your desk phone, your PC or Mac, and your mobile devices. For this to work on your mobile or tablet, you will need to install the MaX UC Mobile app. This guide helps you to do that.

You can also watch support videos here.

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 RS Fiber 10-digit 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 (800) 628-1754. You are prompted to change the password as part of completing the login process.

Download and Install The App

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

Tap Open on the app (if prompted, select RS Fiber as your Carrier). Enter your 10-digit phone number (including area code), type in your Password, and click Login. 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. 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 WiFi connection during a call made on MaX UC Mobile) enter your own mobile phone number and tap Continue.

Exploring MaX UC Mobile

MaX UC Mobile is like having your desk phone on your mobile. You can make and receive calls, hold calls, transfer calls, and make three-way calls. You can even push and pull calls from your phone to other twinned devices, mid-call.

You can also use MaX UC Mobile to send messages to other people in your corporate directory who are using MaX UC (on any device).

MaX UC Mobile uses the WiFi, broadband, or mobile data services available, so you can make and receive calls without using your mobile minutes.

You can access the MaX UC Mobile features using the Contacts, Phone, and Chat tabs at the bottom of the screen.

Contacts Tab

MaX UC Mobile assembles a contact list for you to use. Select the Contacts tab to view your Contacts list. Depending on how your service is set up, the Contacts list may include:

  • Contacts that you type into MaX UC Mobile
  • Contacts stored on your mobile device
  • Contacts in Call Management Portal contacts
  • Contacts in your corporate directory

The contact’s status appears in a speech bubble next to their profile picture.

Tap on a contact to access Call and Chat options. Tap on the Plus icon to add new contacts.

Phone Tab

Tap on the Phone tab to make a call, view your Call History and listen to Voicemail.

To make a call, tap on a contact and select the number to call or tap on the Dialer icon and enter the number.

If the person you are calling has caller ID, they will see your RS Fiber phone number.

The Voicemail tab indicates the number of messages received.

Tap on the Play icon to listen to a voicemail.

Tap on the Voicemail entry to see Call, Chat, and More options.

Tap More to access View contact, Mark as Unheard or Delete Message.

If you have a fax message, the Faxes tab appears; you can tap on it to see the fax.

Chat Tab

Tap the Chat tab to use Instant Messaging. Enter your Chat Address (RS and Password and tap Sign in.

Tap on a contact to continue a previous conversation or click on the New message icon and choose a contact to message

From within the chat window, you can start or continue a conversation, send files, call a contact, or add one or more participants to a conversation. Your Instant Messages automatically sync to all your MaX UC client devices.

Receiving Calls

When someone calls your RS Fiber number, MaX UC Mobile offers the choice to accept or reject the call.

Depending on the other services you have from RS Fiber you may also see the incoming call on your desk phone, on your desktop, or on a tablet device. You can answer the call on whichever device is most convenient for you.

During The Call

While a call is in progress you can use the call window to:

  • Mute your microphone
  • Access the Keypad
  • Turn on Speaker
  • Put the call on Hold
  • Invite a Favorites contact to join the call
  • Add/Transfer the call allows you to make a second call and add the contact into a 3-way call or transfer the call
  • Access More options (send video or switch the call to another device)

You may receive another call while you are already on a call. MaX UC Mobile gives you the option to:

  • Hold the existing call and answer the new call
  • End the existing call and answer the new call
  • Ignore the new call

Transfer The Call

Tap Add/Transfer to send the call to another number. You can select a contact or type in a number to transfer the call to. You can also transfer the call to another one of your MaX UC client devices, without hanging up!

Switch The Call to Another Device

If the call has poor audio due to an unreliable WiFi or mobile data service connection, tap More then Switch and select This device (cellular) to move the call to your regular cell phone. Remember the call will now use your mobile minutes.

Alternatively, you can push the call to another of your MaX UC client devices, such as your desktop or your iPad. Tap More and then Switch and select Another device to push the call to whichever device is most convenient.

Call Pull

You can pull calls from your other devices onto your mobile. If a call exists that can be pulled, MaX UC Mobile displays a Call Available to Pull option. Tap this option and follow the on-screen prompts to pull the call onto your mobile.

Video Calling

If the person you are talking to is also using MaX UC Mobile and your phone has a front-facing camera, you can add video to your call. Tap More then Video to send video. The other person receives a prompt inviting them to switch on their video. Tap on the Video icon at any time to turn off your video feed.


Tap the Star icon on a contact’s directory entry to add the contact to Favorites. Favorite contacts appear in a banner at the top of the Contacts tab.


During a call, click on the Favorites icon to view your favorite contacts. Drag and drop a contact into the call window to setup a new call. When the contact answers, you can merge them into the initial call to create a 3-way call.

Call Notification

On Android devices, when you minimize the call window, the notification banner at the top of the screen shows the active call.

On iOS devices, the call notification banner displays at the bottom of the Phone tab.

Profile & Settings

Click on your avatar in the top-right to access Call, Chat, Contact, and Messaging settings, and additional setup options. You can also configure your profile, send error reports and access Call Manager in the Profile & Settings window.


Whenever one of your contacts is signed in to their Chat account, MaX UC Mobile displays their presence information on the Contacts, Phone, and Chat tabs.

Available Away On the phone Busy In a meeting Do not disturb Offline

Call Manager

You can tell MaX UC Mobile how to handle your incoming calls. Tap the Call Manager option in the Profile & Settings window and select Available, Do not disturb, or Forward all calls.

If you select Do Not Disturb, callers hear a recorded voice announcement saying that you are unavailable and are then connected to your voicemail. None of your devices will ring until you turn off Do Not Disturb, so be sure to use it carefully!

Select Forward all calls and, in the Forwarding number box, enter the number you want to forward all calls to.

Note that when you change your Call Manager settings, the change applies on all of your MaX UC Client devices.

Emergency Calls

MaX UC Mobile lets you make calls from anywhere on the most convenient device. If you place an emergency call from MaX UC Mobile, the operator may not be able to identify where you are calling from.

-Meeting is currently unavailable with RS Fiber MaX UC.

For additional help or support contact RS Fiber Technical Support at (800) 628-1754.

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