Microsoft Lync vs WebEx


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Microsoft Lync
Microsoft Lync (formerly Microsoft Office Communicator) and Microsoft Lync for Mac are instant messaging clients used with Microsoft Lync Server or Lync Online available with Microsoft Office 365. Basic features include instant messaging, Voice Over IP and Video Conferencing inside the client software.
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WebEx
Web conferencing lets you connect with anyone, anywhere, in real time. WebEx combines desktop sharing through a web browser with phone conferencing and video, so everyone sees the same thing while you talk. WebEx free alternatives are Skype, Google Hangouts. If you are looking for open-source self-hosted WebEx alternatives pay attention to Jitsi and Rocket.Chat.
Face to face in the news:


2018 - Cisco acquired Accompany to add AI to Webex, outgoes Microsoft Lync


Cisco has agreed to acquire startup Accompany, which uses artificial intelligence to build databases of people and relationships at companies. It's like a personal assistant, giving executives the context they need before conversations and meetings. Cisco plans to incorporate Accompany technology into its collaboration products, for example by introducing company and individual profiles into Webex meetings. Cisco says it will pay $270 million in cash and stock in the deal. Thus Webex becomes more smart if compared vs Microsoft Lync