Affordable Professional Conference Calls for Everyone. Modern, sleek design encompasses the latest in acoustic technology. Aura SoHo is full duplex, allowing simultaneous two-way conversations. Echo and noise cancellation, provided by the patented SoundClear DSP [Digital Signal Processing] chip, gives you unprecedented clarity of sound. The Aura SoHo comes standard for analog phones, but optional plug in modules: convert it to digital for PBX systems; allow pairing with Bluetooth devices; and soon, will even go wireless! Whether your phone system is analog or digital, you can experience quality conferencing at an affordable price with the Aura SoHo.