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

Claim 8:
9. A emergency communication apparatus, comprising:
an Emergency Service Routing Proxy (ESRP)) connectable to a Public Safety Answering Point (PSAP); wherein the ESRP is adapted for carrying out a method comprising:
performing, by the ESRP, a search operation to track location data of a first communication device in response to receiving an emergency callback request from the PSAP that received an emergency call from the first communication device;
forwarding the callback request to a gateway 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 a 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 a 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.