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Unsupported Phone Features
The following features are not supported on the Polycom VVX 1500 C (due to
proprietary Cisco extensions):
• Call Pickup
• Group Call Pickup
• Directed Call Pickup
• Call Park
• Presence and buddy lists
• Instant Messaging
• Automatic Call Distribution (ACD) Login/Logout
• Secure Real-Time Transport Protocol (SRTP)
• Last Call Return
• Barge-In
• Busy Lamp Field
Unsupported Cisco Features
The following Cisco features are not supported on the Polycom VVX 1500 C:
• Cisco XML Applications
• Cisco Phone directory
• Cisco ad-hoc conferencing
• Cisco TFTP software/configuration file download
Topics Not Mentioned in This Guide
The following topics are not covered in this guide:
• Configuration of the XHTML Microbrowser and the Polycom XML API
• Configuration of other SIP registrars or proxy servers
• Cisco Unified Presence