Patent ID: 7245927
Filing Date: 2007-07-17
Classification: H04L,H04W

Abstract:
1. A method for supporting a directory service between a first terminal associated with a first communication system and a directory server, the method comprising the steps of: (a) receiving a request from the first terminal in the first communication system to determine a first network location of a second terminal in a second communication system, the request containing at least one identifying attribute of a user, the user associated with the second terminal in the second communication system; (b) determining a second network location of the directory server; (c) translating the request in order to query the directory server; (d) sending a translated request to the second network location of the directory server to query for an address of the second terminal, the address being unknown to the first terminal, wherein the translated request contains the at least one identifying attribute; (e) receiving from the directory server a response containing the first network location and the address of the second terminal, the address including an identification of the second terminal; and (f) sending the first network location to the first terminal, wherein the first terminal can call the second terminal at the first network location, wherein the first communication system and the second communication system are disparate systems.