Viking W-1000 Weather Resistant Outside Doorbox 24v Talk Battery

WARNING: THIS PHONE WILL NOT WORK ON A REGULAR PHONE LINE! Verify compatibility first! Viking W-1000 Features: High output speaker amplifier with volume adjustment POT Microphone volume adjustment POT 24 volt talk battery 20 Hz ring generator Compact 45° terminal strip for easy wiring Selectable number of rings (2, 3, 10 or 30) Extended operating temperature range: -15°F to 130°F Door/Gate entry system for any phone system Use with Viking's RC-2A, or RC-3 to operate electronic door strikes Add the VE-5X5 to allow the W-1000 to be surface mounted or attached to a gooseneck Made in the USA Provide your business or residential customers with the security and convenience of conversing with visitors from their own phone prior to allowing entry. Ideal for night doors, shipping/receiving departments, warehouses., residential applications or any security-sensitive entry, Designed to install on an unused trunk input on Electronic or IA2 single or multiline 'No KSU' phones and PABX. When the '