Patent · US Active

Method and apparatus for identifying an IMS service

US8984146B2 · kind B2 · utility

1Cited by

1References

20Claims

0Family size

Assignee

OPTIS WIRELESS TECHNOLOGY, LLC · US

Inventors

Bo Astrom · Tullinge, SE
Mats Stille · Bromma, SE
Anders Ryde · Hallsberg, SE
Stephen Terrill · Madrid, ES
Bror Lennart Norell · Alvesta, SE

Key dates

Filing date	Aug 5, 2013
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Aug 5, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L65/1016
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method of indicating IP Multimedia Subsystem (IMS) services and IMS applications to which a Session Initiation Protocol (SIP) message relates. An IMS communication service identifier and an IMS application reference are added to the SIP message. The identifier and the reference may be added as Feature Tags. The reference may also be added as an a-line augmenting an m-line in a Session Description Protocol (SDP) part of the SIP message.

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