I received the following events in my log on a new install.
3/27/2003 3:04:06 PM CiscoUnity_PHTransfer Warning
Warning 112 N/A UNITY
Alternate Contact Rule Not Active for (username) on line 765 in file e:\views\cs_ue4.0.0.280\un_Conv2\AvConvPhoneHandler\AvConvPHTransferSvr\AvSLoadInfo.cpp
3/27/2003 3:00:48 PM CiscoUnity_ConvMsg
Information (9) 10001
UNITY Running conversation PHTransfer on Port 2
Not sure what the cause was, but running DB Walker cleared these up automatically