Tieline TLR300B2 Commander G3 IP POTS/PSTN Broadcast Audio Codec 2 Available

Barix AG Exstreamer 500 US Package IP Audio Codec - Nice! - ProSoundUniverse.

Henry Engineering USB Matchbox II Multi-Mode Codec - NOS - ProSoundUniverse.

Comrex HotLine POTS Codec

Telos Systems Zephyr XStream ISDN Codec Digital Audio Transceiver no power cord

Prodys PRONTONET IP/ISDN CODEC

COMREX STAC POTS LINE 6 CHANNEL PHONE SYSTEM DUEL HYBRID. BROADCAST, FM AM TALK

Henry Engineering USB Match Plus - RARE! USB to XLR Analog Converter Ultra Codec