Patent ID: 11956706
Assignee: ATOS PUBLIC SAFETY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A computer-implemented method of processing an emergency call reported to a Public Safety Answering Point (PSAP) by a user of a first communication device, the method comprising:
receiving, at an Emergency Service Routing Proxy (ESRP), an emergency callback request from the PSAP that has received an emergency call from a first communication device;
performing, by the ESRP, a search operation to track location data of the first communication device;
forwarding the callback request to a gateway (GW) of a carrier according to the first communication device's location data, and
determining that the user of the first communication device does not respond to the callback request within a predetermined time interval and upon said determining, initiating a SIP INVITE request to the carrier, the SIP INVITE request comprising a new header, the new header comprising a request for forking SMS, for initiating, at the carrier, a procedure for retrieving mobile network addresses of communication devices that are co-located to the first communication device for sending a respective emergency SMS to every co-located communication device, and creating a new conference bridge when the request for forking SMS is created and connecting a call taker at the PSAP to the new conference bridge,
wherein the new header of the SIP INVITE request includes a CustomEmergencyHeader: Fork SMS, Datax1, Datax2, DataxN format.