TBB-1B Features:

• Boost talk battery voltage up to 48VDC
• Boost talk battery loop current up to 26mA
• Power LED also displays activity
• Passes original ringing through to the device
• Passes caller ID data
• Passes hook switch flash
• Passes CPC signals
• Compatible with touch tone dialing
• UL listed power adapter provided
• Run line powered devices such as handsfree phones, touch tone hot-line dialers, digital announcers, etc.
• Increase maximum loop length on analog PABX/KSU stations
• Use with wireless doorbox devices
• Increase phone line voltage / current for alarm panels
• Manufacturer Warranty: 2 Year Limited Warranty

Note: Not compatible with pulse/rotary dialing.