System and method of communication in an IP multimedia subsystem network

A method, comprising:

• receiving, by a system comprising a processor, a plurality of communication identifiers associated with a called party;
• receiving, by the system, a selection of a grade of service selected from a plurality of selectable grades of services stored in a home subscriber server, wherein the grade of service is associated with the called party;
• receiving, by the system, communication data from a presence server that tracks activities associated with the called party;
• directing, by the system, a telephone number mapping server to record the grade of service and the communication data in a naming authority pointer record;
• receiving, by the system, a calling identifier from equipment of a calling party for initiating communications with the called party;
• retrieving, by the system, from the naming authority pointer record the grade of service and the communication data according to the calling identifier;
• receiving, by the system, presence information from the presence server according to the communication data;
• selecting, by the system, a communication identifier from the plurality of communication identifiers according to the grade of service and the presence information;
• and
• initiating, by the system, communications between the equipment of the calling party and equipment of the called party according to the communication identifier.

A system, comprising:

• a memory to store instructions;
• and
• a processor coupled to the memory, wherein responsive to execution of the instructions, the processor performs operations comprising:
• receiving a plurality of communication identifiers associated with a called party;
• receiving a selection of a grade of service selected from a plurality of selectable grades of services stored in a home subscriber server, wherein the grade of service is associated with the called party;
• receiving communication data from a presence server that tracks activities associated with the called party;
• directing a telephone number mapping server to record the grade of service and the communication data in a naming authority pointer record;
• receiving a calling identifier from equipment of a calling party for initiating communications with the called party;
• retrieving from the naming authority pointer record the grade of service and the communication data according to the calling identifier;
• receiving presence information from the presence server according to the communication data;
• selecting a communication identifier from the plurality of communication identifiers according to the grade of service and the presence information;
• and
• initiating communications between the equipment of the calling party and equipment of the called party according to the communication identifier.