Definity 100A Analog Interface

Analog interface for connection of analog Full Duplex speakerphones, computer modems, fax machines. Capable of sending and receiving DTMF (Dual Tone Multi-Frequency). Capable of supporting V.90 series modem communication rates up to 50 Kbps. Supports US ringing specifications of 20 Hz., 55 VRMS, 1.2 seconds on, 4 seconds off.