Unity Connection Overview

Unity Connection is a standalone application, unlike Unity which relies heavily on AD/SQL/Exchange. The OS Used is referred as VTG OS. Voice Technology Group OS, it is the same OS used in CUCM. This is the reason they can both reside on the same server.

When Calls are forwarded to voicemail because they are either busy (CFB) or not answered (CFNA). The phone system forwards this information to the voicemail system.

Example of CFNA (extracted from diag_CuCsMgr_00000013.uc file)

05/31/2011 16:56:09.360 |10283,PhoneSystem-1-001,B295,Arbiter,-1,
Incoming Call [callerID=‘999’
callerName=” calledID=‘1010’ redirectingID=’1010′ lastRedirectingID=‘1010’ reason=4=FwdNoAnswer lastReason=4=FwdNoAnswer]
port=PhoneSystem-1-001 portsInUse=1 ansPortsFree=23 callGuid=B0D00F13D39E98295|

Example of CFB (extracted from diag_CuCsMgr_00000013.uc file)

05/31/2011 16:57:13.740 |10264,PhoneSystem-1-001,D4ED5, Arbiter,-1,
Incoming Call [callerID=’999‘ callerName=” calledID=’1010‘ redirectingID=’1010′ lastRedirectingID=’1010’ reason=2=FwdBusy
lastReason=2=FwdBusy] port=PhoneSystem-1-001 portsInUse=1 ansPortsFree=23 callGuid=D4ED9AA74038775|

There are five different greetings:- Continue reading