Telos
Telephone hybrids & multiline systems
Telos made a lot of technology innovations in the years since their pioneering Telos 10 Digital Hybrid Talk Show System--the first broadcast product to use DSP. They're the acknowledged leader in developing DSP-based technology for sending and receiving high-quality audio via the dial-up telephone network; the call-in and talk show programming hybrids and systems have set the performance benchmarks by which others are judged.
Telos sees ISDN as a tremendously empowering technology for new and creative audio programming and production. The Telos Zephyr, designed to make ISDN an easy-to-use, effective tool for broadcast and audio professionals, has established itself as the standard for transmitting audio over the switched digital telephone network.