I test it out walking around the station, and it works. The quality is clear and volume controls allow for personal preference.
Though from an operational standpoint the device works, it's important to consider a few things. First, convenience. The handset is large, with a cord, and does not make for as easy storage as a cell phone. Second, it looks a bit, uncommon. If you don't mind an occasional glance or someone staring, then this option may be for you. For the rest of us, the "speaker " option on the phone may work just fine.