Monthly Archives: May 2013

PSTN to Lync 2013 Unassigned Number failure

Incoming calls from the PSTN to an unassigned number within the unassigned number range on Lync 2013, the call fails. The same number called from the Lync client completes successfully, and is routed to either the Announcement service or Exchange Attendant depending on configuration. In Snooper the call trace shows a “486 Busy Here” or… Read More »