Rack Mount Telos ZEPHYR Digital Network Audio Transceiver - UNTESTED

Telos Zephyr Express Portable ISDN Audio Transceiver Layer III No Power Supply

Telos Systems Zephyr XStream Digital Audio Transceiver ISDN CODEC

Telos Systems Zephyr XStream ISDN Codec Mountable Audio Digital Transceiver

Telos Zephyr Express Portable ISDN Audio Transceiver

TELOS SYSTEMS INC ZEPHYR EXPRESS PORTABLE ISDN AUDIO TRANSCEIVER

Telos Zephyr X Stream ISDN Codec Digital Audio Transceiver