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Troubleshooting the Polycom CX300 
Phone
This chapter contains general troubleshooting information to help you solve 
any problems you might encounter when you use the Polycom® CX300 
desktop phone in a Microsoft® Office Communications Server 2007 R2 
environment. The phone can provide feedback in the form of on-screen error 
messages, status indicators, and log files for troubleshooting issues. 
This chapter presents frequently asked questions and corrective actions for the 
Polycom CX300 phone. Issues are grouped as follows:
• Issues When Getting Started With the Phone
• Understanding Display Messages
• Issues When Making Calls on the Phone
• Using the Polycom CX300 Phone as an Audio Device
• Retrieving Voice Mail Using the Polycom CX300 Phone
• Languages Supported by the Polycom CX300 Phone
• How to Use the Polycom CX300 Phone When Computer is Locked
• Changing the Display and Audio Levels
For more troubleshooting information, refer to the User Guide for the Polycom 
CX300 Phone, which is available at 
http://www.polycom.com/support/voice/cx/communicator_cx700.html .
Review the latest Getting Started for Microsoft Office Communications Server 
2007 R2 , which is available at 
http://technet.microsoft.com/en-us/library/dd441174%28office.13%29.aspx