Patent ID: 8345843
Filing Date: 2013-01-01
Classification: H04M

Abstract:
1. A method of investigating an unknown calling party having sent a communication request to a called party, in order to provide relation information to the called party regarding the calling party, as executed in a communication network or terminal serving said called party, comprising the steps of: receiving a relation query for the calling party from the called party, said calling party being absent from any contact list that has been defined for the called party and comprising parties known and related to the called party; determining whether the calling party is known and related to a third party directly or indirectly known and related to the called party in a contact list that has been defined for the called party, by checking if the calling party is present in a contact list that has been defined for said third party and comprising parties known and related to the third party; and, providing relation information to the called party based on the outcome from said determining step.