Patent · US Active

System and method of communication in an IP multimedia subsystem network

US7778231B2 · kind B2 · utility

9Cited by

0References

8Claims

0Family size

Assignee

AT&T Intellectual Property I, L.P. · US

Inventors

Bernard Ku · Austin, US
Mehrad Yasrebi · Austin, US
Chaoxin Qiu · Austin, US

Key dates

Filing date	Feb 21, 2007
Grant date	Aug 17, 2010
Priority date	—
Expiry date	Oct 5, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04W48/18
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A system and method of communication in an IMS network is disclosed. An apparatus that incorporates teachings of the present disclosure may include, for example, a call processing server having a controller element that receives from a terminal device a calling ID for establishing communications with a called party, submits to a telephone number mapping (ENUM) server a query corresponding to the calling ID, receives from the ENUM server a plurality of communication identifiers retrieved from a Naming Authority Pointer record according to a grade of service (GoS) of the called party, and selects according to the GoS of the called party a communication identifier from the plurality of communication identifiers to establish communications with the called party. Additional embodiments are disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.