Topic Last Modified: 2013-10-07
Public Instant Messaging Connectivity is a class of federation,
and is configured to allow your internal and external Lync Server
2013 users to add contacts from any of the following:
As of September 1st, 2012, the Microsoft Lync Public IM
Connectivity User Subscription License (PIC USL) is no longer
available for the purchase for new or renewing agreements.
Customers with active licenses will be able to continue to federate
with Yahoo! Messenger until the service shutdown date. An end of
life date of June 2014 for AOL and Yahoo! has been announced. For
details, see Support for public
instant messenger connectivity.
The PIC USL is a per-user, per-month subscription license that
is required for Lync Server or Office Communications Server to
federate with Yahoo! Messenger. Microsoft’s ability to provide this
service has been contingent upon support from Yahoo!, the
underlying agreement for which will not be renewed.
More than ever, Lync is a powerful tool for connecting across
organizations and with individuals around the world. Federation
with Windows Live Messenger requires no additional user/device
licenses beyond the Lync Standard CAL. Skype federation will be
added to this list, enabling Lync users to reach hundreds of
millions of people through IM and voice.
This class of federation requires the following planning
Windows Live Messenger users can have peer-to-peer audio/visual
communication with Lync Server 2013 users, in addition to instant
messaging. Your Edge Servers must meet specific port and protocol
requirements. For details, see Determine External A/V
Firewall and Port Requirements.
Yahoo instant messaging has no unique requirements, other than
those typically used in the planning and deployment of the typical
Edge Server that is providing federation.
America Online requires that your Edge Server certificate
assigned to the Access Edge service has a client enhanced key usage