Algo 8188 SIP Ceiling Speaker - Excluding Bracket - White Category_Best4Headsets/Telephone Headsets/Headset Accessories/Headset Parts 220 ohm dynamic noise cancelling

220 ohm dynamic noise cancelling microphone

ActiveGard technology protects hearing against Acoustic Shock

Airflow indicator (TR-971)

Up to 4 concurrent calls

Rack-mountable - 1U

Algo 8188 SIP Ceiling Speaker - Excluding Bracket - White Category_Best4Headsets/Telephone Headsets/Headset Accessories/Headset Parts 220 ohm dynamic noise cancellingAlgo 8188 SIP Ceiling Speaker Excluding Bracket White SIP Compliant Compatible with all SIP based IP PBX phone systems Dual SIP extensions for page or notification Configurable to any number of speakers Supports Wideband HD Voice (G. 722 Codec) Configurable via web interface Support auto provisioning Internal memory for uploaded WAV files or recorded messages Programmable relay (dry contact) output Programmable relay (dry contact) input or illuminated