System and method of providing a high-quality voice network architecture over IP Centrex

A system for providing high quality sound communications within an IP Centrex network, the system comprising:

• a processor;
• means for controlling the processor to retrieve a security profile including a security code confirming a quality of service;
• means for controlling the processor to negotiate between a first customer premises equipment (CPE) and a second CPE, the negotiation being related to a possible quality of a call between the first CPE and the second CPE and based in part on capabilities of the first CPE and the second CPE;
• means for controlling the processor to map between a dialing plan and a network address;
• means for controlling the processor to determine the network address of the first CPE and the second CPE;
• and
• means for controlling the processor to connect the call between the first CPE and the second CPE according to the negotiated quality of the call and the dialing plan mapping, wherein at least one of the first CPE and the second CPE is an intelligent phone and further comprises:
• means for digitizing sound received at the intelligent phone;
• means for packetizing a received signal;
• and
• means to negotiate with the IP Centrex to connect to the network at rates more than 64 kbps.