Question : Validate front end server configuration error

i have deployed OCS 2007 R2 and configure and start it, on "validate front end server configuration" step i have "Failure [0xC3FC200D] One or more errors were detected " error related to "Check Pool Hosted User Setting" as it shows in attached image.
I use server 2008 x64, OCS 2007 R2, SQL 2005 SP2

i need it necessarily as part of dissertation.

i appriciate in advance for any help

thanks
Mohssen

Answer : Validate front end server configuration error

At the OCS Forest level click properties/Voice Properties and create a location profile if you plan to support Enterprise Voice.  

The error is in reference to no location profile being specified.  This is necessary for call routing and phone number normalization.  

Otherwise the error can be ignored or you can change the users that are enabled for Enterprise Voice back to PC to PC calling.