Office UC is a Unified Communications application that allows you to make and receive calls, use Instant Messaging & Presence, control your features and more using your partnered Service Provider.

PLEASE NOTE: An active account with appropriate features with a partnered Service Provider is required to use this application.

Office UC allows you to make and receive voice and video calls over Wi-Fi and Cellular Data connections on your iPhone via an easy-to use and intuitive user interface.

Access the same contacts you already have in your iPhone and your Company Contacts. Use Instant Messaging and Presence with your Company Contacts, view your Call History and manage your features and settings

What’s New

Version 23.2.0

We've updated the look and feel of the app so that it is more mobile friendly.

Ratings and Reviews

2.9 out of 5
42 Ratings

42 Ratings

Greeny_M ,

Office UC

Integrates well with our systems but could do with (a) the ability the change the notification tone. Outside of my office, calls are easily missed and (b) some way to prevent incoming calls on my private number interrupting calls I am making in the app. Incoming calls on the private number currently put the app call on hold.

Otherwise a solid app which with a few tweaks could receive a higher rating.

trudyrocks ,

Good and doing what it does, latest version not

This is a good app to use when I work remotely. I can answer calls whilst away from my desk and transfer call. All relatively easy, even when the app is in the background it will still ring. However the new update, with new user interface, has come with an issue. Even with my app NOT open, closed it on my phone via multitasking it still rings my phone. So when I’m in the office and have an incoming call it rings both phones which is quite irritating. How do I stop this from happening?!

stephski73 ,

Could do better!

The previous version of the app was better and much easier to use. I don’t know who thought that the new version was an improvement, it is not!
It works well as long as I have got decent strength internet WiFi or 4g.
Call quality is good on decent internet.


British Telecommunications plc
68.7 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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