公开(公告)号：AU2007325784B2

公开(公告)日：2011-09-15

申请号：AU2007325784

申请日：2007-11-26

Applicant: TELECOMM SYSTEMS INC

Inventor： GORDON HINES JOHN ,  VICTOR BURTON ,  MARSHALL ROGER S ,  FEI YANG ,  YINJUN ZHU

IPC: H04M11/04 ,  H04W4/90

Abstract: A method and mechanism to allow a location server to initiate a user plane location service (e.g., SUPL defined by OMA) procedure to a user plane enabled device via Instant Messaging, or alternatively, via an existing SIP session if a multimedia session is already established. The location request is signaled to the user plane enabled device via a SIP INFO message. The location request uses SIP messaging to overcome firewall and other network security issues. Location using SUPL over SIP may be provided about a caller making an E911 emergency call. An Instant Message may be sent to the user plane enabled device, e.g., a VoIP wireless phone.