Tone Control Card: All call progress tones are supplied by this card. In addition this card contains the DTMF and DP pulse generators, voice paging circuitry and diagnostic testing functions. Learn More
- Part Number: BIOU1A
- Provides four-zone paging, three MOH inputs with volume control, four control relays, background music (BGM) mute, and a 600 ohm or 3-watt amplifier page output.
- Maximum 2 BIOU per CTX670/100 system. Learn More