Upgrading Polycom CX700 Phone within a Microsoft Office Communications Server 2007 R2 Environment
To determine the correct syntax for the DB to connect to you can look at the Pool, Database tab; the value listed for Database Instance Name: is the value you substitute for $poolbackend$. Also, double quotes work as well as single quotes
Also, you have to add a second backslash to existing backslash separating the instance name from the database name as shown (for example, '(local)\\rtc'):
4.This query opens one instance of this class.
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