Unified Communications Infrastructure

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Dear All,We are planning to migrate our existing call manager (ver 5.X) as it is End of Life. Current infrastructure consists of following server:   3 CUCM servers (ver- 5.1.3.7109-1)   1 Unity Server (ver-4.2(1))Current License Detials:CUCM•1.      ...

Hi,  I am working in a trouble shooting of meeting place, I got very confused these 2 question:1)  in a real conferencing senario, does each audio stream from a participant  should go to Audio Blade (Media server) in order to mix together. if so and ...

Lin Zhu by Level 1
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Hi,i have the following error from Presence Engine logs:14:56:03.112 |system.pe.pa.owa.backend 1243662 ERROR -->EWSCalendarInfo::initiateRecovery: firstname.lastname@exchange.domain.com POST 3 Authentication failure on server; Could not authenticate ...