Traditional Voice (Circuit Switched) Traditional Voice (Circuit Switched) uses a dedicated line connected by a switch to the dedicated line of the person called. Traditional voice telephone service is provided by Cox and Verizon. Voice Over Internet Protocol or VoIP (Packet Switched) Advantages of New Voice Technologies over Traditional Voice Technologies Disadvantages of New Technologies over Traditional Voice Power Issues 911 and E911 Issues Summary of Services Provided and Conditions That May be Encountered