E-30-pt with EwpViking Handsfree Phone Will Call And Pushtotalk ButtonsDesigned To Provide Quick And Reliable Communication In Noisier AreasMic Sensitivity Is Set To A Low Level Until The Talk Button Is Pressed Then It Is Raisedto A Normal Level (assures That The Called Partys Voice Will Be Broadcast Over The Speaker; In Applications Where The Background Noise Can Be Louderthan The Person Calling A Handset Type Phone Is Recommended) Nonvolatile MemoryBuilt In DialerIntelligent Call Progress Detection Forautomatic Hangup When The Call Is CompletedCan Be Programmed To Dial Up To 5 Different Numbers On Ring No Answer Or Busy And Can Be Configured To Dial These Numbers Until AnsweredShares All Of The Features Of The E30pt In Addition To Enhanced Weather Protection (ewp) For Installation In Harsh EnvironmentsEwp Products Feature Rubber Gaskets And Boots Hand Soldered Silicon Sealedconnections Gelfilled Butt Connectors As Well As Urethane Potted Circuit Boards With Weather Sealed Fieldadjustable Trim Pots And Dip Switches For Easy Onsite ProgrammingApplications: Nonada Hotline Phones For Terminals Stadiums Parking Lots/ramps Convention Centers Atm MachinesApplications: Gate And Door Entry Phones For: Business Lobbies Vehicular And Pedestrian Gates ResidencesPush To Talk ButtonPhone LinepoweredVandal Resistant Stainless Steel Faceplate With Heavyduty Metal Call ButtonNonvolatile E2 Memory (no Batteries Required) Touch Tone Or Pulse DialingProgrammable To Dial Up To 5 Numbers On Busy Or Ring No AnswerRed Offhook Led IndicatorHangs Up On Cpc Silence Busy Signal Return To Dial Tone Time Outor A Touch Tone CommandProgrammable To Autoanswer On Incoming CallsRemotely ProgrammableExtended Temperature Range (15 F To 130 F) Flush Mountable Using Included Plastic Roughin BoxOptional Vkve5x5 Surface Mount Back BoxConforms To Nema RequirementsSilverViking Electronics