1783 RJ9 4P4C Telephone Curly Cord – 7ft – Black

Algo 8180 SIP Audio Alerter Loud Ring and Paging Application

Full-duplex speakerphone with HD acoustic chamber, advanced acoustic echo cancellation, 3 directional mics with MMAD & microphone beam-forming array and 1 omni-directional auxiliary microphoneIntegrated dual-band 802.11 a/b/g/n/ac Wi-Fi and Bluetooth