Unified communications plan that provides Instant Messaging, presence, video chat, online meetings and Lync-to-phone' functionality, ...

Unified communications plan that provides Instant Messaging, presence, video chat, online meetings and ‘Lync-to-phone' functionality, including placing and receiving calls to/from any phone number and interoperability with Exchange Online voice mail. Please note that the phone service for ‘Lync-to-phone' is not provided by Microsoft and requires a separate purchase from a qualified partner as listed in the Office 365 marketplace.