Speakerphone E-20B w/ EWP GRAY - 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 to a C.O. line or analog PABX/KSU station when programmed as a ringdown circuit or used with a Viking hot-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 well as 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 handsfree communication - Programmable VOX (mic/speaker) switching speed - Impact resistant U.V. stable plastic chassis - Light gray- Surface mountable only VKE20BEWP