As POTS service fades out, the old way of putting phone calls on the air is disappearing with it. The choices have been emulated POTS to keep phone hybrids alive or replacing the whole phone system. But wait, theres a third choice. The Phone Gizmo lets you take phone calls on the air without a phone hybrid. Because the Phone Gizmo is galvanically isolated (power, ground and data), the audio is clean and clear. No buzz, no whine, no surprises. And since the phone is handling the VoIP side, even wideband and HD voice calls are supported.Audio connects at nominal +4 dBu using fully balanced analog lines on StudioHub RJ45 connectors. We include StudioHub to XLR adapter cables so you dont have to rethink your wiring or buy anything else. Just in case you arent already using StudioHub everywhere. No judgement.Main Features:Built to last: Premium long-life components throughout.Plug and play: Class compliant. No drivers needed.Quiet as a mouse: Galvanically isolated from audio circuitry.Best in business: RJ45 audio ports use Studiohub+ format.Fully balanced: Inputs and outputs capable of +24dBu.All included: XLR adapters and USB cable included.