If you are interested in Caller ID Blocking, allowing you to block your number from other people on outgoing calls, then Net Servicing is the company you should contact. They offer VOIP signup that is easy, low-cost, and does not require switching your existing number. They offer a range of special services, actually, including call forwarding, call logs, voicemail, and caller ID, amongst others. Net Servicing can be reached by calling their number, 1-877-572-2069, and talking to someone on staff about making the switch. Net Servicing is a VOIP provider that prides itself on high quality customer service and they show it through every call.