Patent ID: 7668551
Filing Date: 2010-02-23
Classification: H04L,H04W

Abstract:
1. A method for setting up a connection in a system for mobile telecommunications performed by a first call control node comprising a gateway mobile switching center comprising the steps of: receiving a call set-up request message comprising an indication of at least two services including an indicator of a speech service and an indicator for a multi-media service and an identification of a called party; sending a routing information request message to a database for storing subscriber data comprising a home location register, wherein the request comprises an identification of a first of the at least two services, an identification of the called party, and an indication that at least one further routing request message will be sent; receiving a response message from the home location register; determining that the response message comprises an indication that the home location register is adapted to process the indication that at least one further muting info request message will be sent; sending a further routing information request message comprising an identification of a further service, and receiving a further response message; analyzing the received response messages to determine if the home location register is adapted to handle yet at least one further request message; and sending or not in dependence of the result of the analysis a call set-up request message to a further call control node.