C'est pour bientôt!
This evolution combines the ease and familiarity of Skype with the communication and collaboration features of Lync and enables you to conduct your business through an enterprise-grade secure platform using the devices you already have.
Skype for Business for Windows Phone includes a new look and feel, new emoticons, and other improvements. And, if your organization uses Skype for Business Server 2015, the ability to communicate with your Skype contacts using IM, audio call, and video call. We've spelled out all the details in Lync for Windows Phone is now Skype for Business—see what's new. See that article for the full story.
Skype for Business runs on Windows Phone 8.1 and later. If you're using Lync on an earlier version of Windows Phone, continue to use it and we won't send you the update.
You'll receive the update to Skype for Business if your Windows Phone is version 8.1 or later. The update will be automatic unless you've disabled automatic updates in your Settings menu. Once updated, your Skype for Business contacts and meetings will still be there and will work just like they did in Lync. If you're using an earlier version of Windows Phone, you'll continue to use Lync 2013.
You will not receive the update to Skype for Business.
To use Skype for Business for Windows Phone you need a Skype for Business or Lync account—typically the same user name and password you use when signing in at work or school. If you're already using the desktop version of Skype for Business, then you have a Skype for Business account. You can download the app from the Windows Phone store. See Download, install, and sign in to Skype for Business for Windows Phone 8.1 for more information.
Not yet, but check back often. Skype for Business for Android and iOS is coming soon. In the meantime, if you have Skype for Business on your desktop, you can continue to use the Lync 2013 app on your iOS or Android phone until the new Skype for Business app is available.