Simply plug a regular telephone into a certified device, which is either a stand alone VOIP equipment or is connected to your computer. The phone works just like traditional service, except it utilizes your broadband Internet connection rather than the Public Switched Telephone Network (PSTN). With a portable Direct Inward Dial (DID) phone number, customers are not bound by location. You can take their phone anywhere in the world, and have it ring wherever you are connected to a broadband Internet connection. Our Inbound Phone / Broadband Phone offers great features, including: - Online payment and account information/management - Caller ID - Voicemail - Online address book - Speed dial