Ancillary data support in session initiation protocol (SIP) messaging
US7929530B2 · kind B2 · utility
7Cited by
412References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Aug 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A SIP ancillary data server provides host to auxiliary data for an emergency SIP session (call) uniquely referred to in a transported SIP header. In a manner similar to how location is represented in an emergency call, a SIP header is extended. The extended SIP Header contains one of two possible types of content elements: either (a) a content pointer element to a SIP Message body part (a “cid:”, or content identifier); or (b) an <information_URI> (a.k.a, “info_URI” in this document).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.