The telephone is designed to be used at the back of a typical analog phone line (landline/POTs or VoIP) or registered PABX system. This auto-dialer emergency phone can auto dial a pre-programmed phone number e.g. 911 and/or also receive calls (ringer is adjustable). Note: This telephone can’t be used with digital PABX station ports. Data port – Provides a convenient extension of the hooked up telephone line for connecting a tool such as a modem, fax, or answering machine. Dimensions: 8.75” (l) x 6.0” (w) x 2.75” (h). Weight: 3.1 lbs (14.06kg). Certifications: FCC Part 68, FCC Part 15 & UL 1459 Ref. ADA/FCC Hearing Aid Compliant.

Auto dials pre-programmed phone number when handset is taken off-hook.
Hearing aid-compatible handset with volume Regulate — Volume controls for the handset and speakerphone. Volume could also be set to one in all four levels.
Audible Incoming call Ringer Volume Regulate (Switch: Low | Hi). Desk or wall-mount option.
Visual incoming call alert led lamp – Also functions as message waiting light for compatible with prime voltage neon (90dc volts) and at&t/lucent/avaya low voltage led message waiting light systems (20 to 25dc volts).
One (1) Year warranty.