Viking outdoor speakerphone with EWP Provides convenient handsfree communication Telephone line powered speakerphones designed to provide two way handsfree communication When call button is pressed, the unit will come off-hook and will remain off-hook until a CPC signal is detected, the programmed timeout has elapsed, a busy signal is detected, or the call goes silent, making the unit automatically disconnect Can be connected directly toa C.O. line or analog PABX/KSU station when programmed as a ringdown circuit, or used with a Vikinghot-line dialer. If a line or station is not available, Viking's DLE-200B ring down circuit can be used 1-4 speakerphones can share an existing phone line in a house or small business when used with a Viking C-2000A (respectively) Entry Phone Controller Enhanced weather protection Rubber gaskets and boots, closed cell foam gasketing, hand soldered silicon sealed connections, anti-corrosive gel filled tip and ring connectors, as wellas urethane encapsulated circuit boards with internally sealed, field-adjustable trim POTS and DIP switches Applications: commercial, industrial and residential door security, door or gate communication, business delivery entrances Use in conjunction with a Viking K-1900-5 Dialer on C.O. lines or analog PABX/KSU stations Use on any programmed ringdown circuit of an analog PABX/KSU station Alternate action call button to place or cancel a call Intelligent call progress detection for automatic hang-up on CPC, silence, busy signal, or time out Telephone line powered Weather resistant features: mylar speaker, gaskets, internally sealed push button switch, UV stable exterior, enamel coated PCB Adjustable microphone and speaker volume Programmable maximum call length Selectable auto-answer feature allows remote monitoring Two way handsfreecommunication Programmable VOX (mic/speaker)switching speed Impact resistant, U.V. stable, plastic chassis Light gray Surface mountable only