As a Microsoft Gold Partner, POSTcti specializes in integrating legacy PBX systems with Microsoft Office Communications Server and other collaborative applications. Their primary hosted offering, Unified Desktop, combines hosted Microsoft OCS 2007 R2 with hosted Microsoft Exchange to deliver a complete end-to-end hosted portfolio, including IP telephony, presence, instant messaging, audio/video/web conferencing, and other leading collaborative tools. POSTcti's solutions address workforce mobilization, employee productivity and retention, disparate vendor investments, business continuity and disaster recovery, and IP telephony migration.