In Line Amplifier Tone Control 40db V-WGACLK The efficient NEC COI(4)-U10 ETU

The efficient NEC COI(4)-U10 ETU / CENTRAL OFFICE INTERFACE UNIT (Stock # 750150) is a Central Office Interface Unit that supports 4 outside (CO/PBX) lines

and 25 feet

The modern Yealink SIP-T22P is an intuitive user interface and enhanced functionality which makes it easy for people to interact and maximize productivity

RF Power :

GigE 10-15V In

In Line Amplifier Tone Control 40db V-WGACLK The efficient NEC COI(4)-U10 ETUIn Line Amplifier Tone Control 40db Clarity Inline Receiver Amplifier Increases Incoming Call Volume Up To 40db (increases Incoming Volume Up To 100 Times) Tone Selector For Maximum Speech Clarity (amplifies Selective Frequencies) Connects Between Handset And Phone Base Compatible With Most Home And Office Telephones With Modular Handset Cords Cannot Be Used With Telephones With Dialing Pads In The Handset Turns On Automatically When You Lift The