PLC Hardware - Cisco CP-7937-MIC-KIT=, Used in PLCH Packaging
Amazon.com : Cisco CP-7937G Unified IP Conference Station VoIP phone POE, Requires Cisco Communications Manager (Renewed) (Power Supply Not Included), Charcoal Black : Office Products
Cisco 7937G External Microphones
PLC Hardware: Cisco CP-7937-MIC-KIT Microphone Kit for Cisco 7937G