Telefonaktiebolaget Lm Ericsson (publ)

Bhavik Arvindbhai Chauhan

Andreas Anulf

Charles Hegarty

A method performed by an Internet protocol Multimedia System, IMS, node for handling categorization data associated to a first device in an incoming call invitation from the first device to a second device in a communications network is provided. The IMS node obtains () from the server node, a number of respective data delta. Each data delta is related to a respective device out of a number of devices at a respective subsequent point in time. The respective data delta comprises only categorization data that is updated compared to categorization data relating to a point in time that is earlier than the subsequent point in time. Upon receiving () from the first device, a call invitation to the second device, the IMS node enforces () a policy relating to categorizing the type of communication of the call, to establish a trust level associated with the first device. The enforcing is based on whether a data delta relating to the first device is obtained among the number of obtained data delta relating to the number of devices.

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Stockhom, Sweden

Bhavik Arvindbhai Chauhan