US Patent 7983228 Integration of IP multimedia subsystem and a push-to-talk interoperability infrastructure

Patent 7983228 was granted and assigned to Nextel Communications on July, 2011 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Nextel Communications

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

79832280

Patent Inventor Names

Ojas T. Choksi0

Date of Patent

July 19, 2011

Patent Application Number

114872310

Date Filed

July 14, 2006

Patent Primary Examiner

‌

Marivelisse Santiago-Cordero

Patent abstract

The present invention relates to converging a PTT Interoperability Infrastructure (PII) and an IP Multimedia Subsystem (IMS). In one embodiment, a common home subscriber server (HSS) and proxy call session control function (P-CSCF) are provided for both the PII and IMS. In another embodiment, a common registrar is used for both the PII and IMS. In still another embodiment, shared media element are provided for the PII and IMS. In yet another embodiment, session control element are shared between the PII and IMS.

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