Atp worldnet Milano apt-x enhanced full dplex audio codec for ISDN From APT W

1X Glensound GSGC24a 3 channel ISDN mixer with + psu. codec G722 G711

Glensound GSGC24a 3 channel ISDN mixer with codec with G722 G711

Vortex VX1000 Baby Blue ISO-II / G.722 ISDN Codec - 19" Rackmount

Telos One-R Digital Hybrid Telephone Line Audio Broadcast Interface

Robert leacroft ISDN to dual 4wire unit

Nicral CCD cdq prima220 ISDN mainframe and remote panel Easycall 20Khz stereo

Vortex VX-1000 baby blue ISO-ll / G.722 Codec