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According to the Cisco Unified TAPI Developers Guide for Cisco Unified Communications Manager, Release 15 and SUs, all Windows operating systems support CiscoTAPI. However when I look at the Supported Windows OS for Cisco TAPI page found here: http...
You need to keep the Exchange 2003 System Manager on the Unity Server. The following is from the Unity Install Guide for Unity 5.0(1) at the following link:http://www.cisco.com/en/US/docs/voice_ip_comm/unity/5x/installation/guide/umexnofo/5xcuigumen...