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 the steps of: - 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 most appropriate gateway, GW, of a carrier according to the first communication devices' location data, and upon detecting that the user of the first communication device does not respond to the callback request within a predetermined time interval, - initiating a SIP INVITE request, by the ESRP, 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; - wherein the method further comprises a step of waiting a predetermined time period for receiving SMS responses, - wherein after the predetermined time period has elapsed and a number of SMS responses comprising consent for providing location data have been received, the method further comprises a step of creating a sorted list comprising the location data of the telecommunication devices in the vicinity of the first telecommunication device, and - wherein the method further comprises a step of sending a SIP INVITE request to the first communication device of the sorted list that according to the location data is the one located closest to the first communication device, and if the first communication device does not answer the request, then a serial ringing procedure is carried out on the basis of the sorted list, calling the next communication devices of the sorted list serially for enabling live-tracking of the emergency incident. - 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 most appropriate gateway, GW, of a carrier according to the first communication devices' location data, and upon detecting that the user of the first communication device does not respond to the callback request within a predetermined time interval, - initiating a SIP INVITE request, by the ESRP, 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; - wherein the method further comprises a step of waiting a predetermined time period for receiving SMS responses, - wherein after the predetermined time period has elapsed and a number of SMS responses comprising consent for providing location data have been received, the method further comprises a step of creating a sorted list comprising the location data of the telecommunication devices in the vicinity of the first telecommunication device, and - wherein the method further comprises a step of sending a SIP INVITE request to the first communication device of the sorted list that according to the location data is the one located closest to the first communication device, and if the first communication device does not answer the request, then a serial ringing procedure is carried out on the basis of the sorted list, calling the next communication devices of the sorted list serially for enabling live-tracking of the emergency incident.