Ancillary data support in session initiation protocol (SIP) messaging
AssigneeTeleCommunication Systems, Inc.
InventorsRoger S. Marshall, Yinjun Zhu
Life of this patent
Estimating the term…
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).
Claims2
A Session Initiation Protocol (SIP) proxy server for facilitating inclusion of auxiliary data along with location in a SIP session, comprising:
- a first communication path to receive a SIP message from an initiator of said SIP message;
- a proxy module to associate auxiliary information identified in a SIP header of said SIP message with said received SIP message;
- and
- a second communication path to a recipient of said SIP message;
- wherein, aside from the association to said auxiliary information, said SIP message further includes current location information relating to a current position of said initiator.
2-20. (canceled)
Dependencies are inferred from the claim text.