The Business Gateway option is ideal for the small or medium enterprise that has it's own VoIP PBX or softswitch, and wants the freedom of SIP Trunking and the cost savings of a wholesale pricing model.
Unlike "per seat" pricing you often find with a managed or hosted pbx service, with a Business Gateway you can purchase the exact number of DIDs you need and only pay for the actual calls you make and receive. Enjoy low per minute rates and never worry about overage charges. SIP Endpoints are free with the Business Gateway.