Public IM Service Provider | Federated Capabilities | Licensing Requirements |
---|---|---|
Skype | IM, Presence, Audio | Lync Server Client Access Licenses, Lync Online Plan 1/2/3 |
Windows Live Messenger | IM, Presence, Audio/Video | Lync Server Client Access Licenses (supported as long as WLM is in market) |
AOL | IM, Presence | Lync Server Client Access Licenses; supported through June 2014 for existing customers. |
Yahoo! | IM, Presence | Requires additional Microsoft Lync Public IM Connectivity User Subscription License (“PIC USL”) in addition to Lync Server Client Access Licences. As of the September 2012 Price List, the PIC USL is no longer available for purchase. Customers with active licenses are able to continue to federate with Yahoo! Messenger until the service shut down date on June 30, 2014. |