Telcocity is providing Direct Inward Dialing service which facilitates a telephone number over VoIP protocol including SIP or IAX2. Using this DID service a end user can receive his Phone Number using a sip soft phone, hard phone, or an IP PBX. Telcocity offers DID numbers to both end users as well as corporate users. The charges are charged per month, and per min, and per channel based. Here no hardware is required. Telcocity will provide you all the hardware needed to role the service to receive call. The call travels to you all the way over the Internet via Telcocity.