Features:
- 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
- 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
- Vandal resistant white powder painted aluminum faceplate with heavy duty 316 stainless steel call button and mounting gasket
- Flush mount using the included rough-in box or surface mount using a VE-5x5 Surface Mount Box (DOD 424)
Applications:
- Door or gate communication, business delivery entrances
- Provide unique front and back door chimes and paging when used with a Viking C-2000B and a Viking SLP-1 or SLP-4
- Residential, commercial, and industrial door security
- Use with a Viking K-1900-5 or K-1900-30 for automatic speed dialing on telephone lines or analog PABX / KSU station ports
- Use on any analog PABX station port with programmable ringdown capability
Certifications:
The E-10-WHA is a telephone line powered door entry phone designed to provide two-way handsfree communication. When the "Call" button is pressed, the E-10A 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.
The E-10-WHA can be used with a Viking K-1900-5 or K1900-30 dialer, or connected directly to a CO line or analog PABX / KSU station when programmed as a ringdown circuit. If a line or station is not available, a Viking DLE-200B ringdown circuit can be used. One to four E-10-WHA speaker phones can share an existing entry phone line in a house or small business when used with a Viking C-200, C-250, C-500, or C-2000B Entry Phone Controller.
For more information, please see 
User Manual
