Summary
Low Voltage Universal Speech Network
Description
The GL6962 and GL6962A are bipolar integrated circuits that perform all speech and line interface functions required in fully electronic telephone sets. They perform electronic switching between dialing and speech. The ICs operate at line voltage down to 1.6V DC (with reduced performance) to facilitate the use of more telephone sets connected in parallel.
Source title
GL6962 Datasheet(PDF) - Hynix Semiconductor