Patent ID: 6301348
Filing Date: 2001-10-09
Classification: H04M,H04Q

Abstract:
A method for changing direction of establishing a telecommunication connection in a telecommunication network, said telecommunication connection comprising telecommunication links established between subscribers located in different countries, in which method an A-subscriber located in a first country initiates a first telecommunication link to a service point of a service provider in order to establish a telecommunication connection to a C-subscriber located in a second country, and in which method the establishing direction of the telecommunication connection is changed from the first country to the second country so that said telecommunication connection is established first from said service provider to said A-subscriber and further to said C-subscriber, said method comprising the steps of:establishing said first telecommunication link to a collection node located in said first country;receiving identifications of the A-subscriber and the C-subscriber in said collection node;initiating and establishing a second telecommunication link between said collection node and a service node located in a third country defined by the service provider, said second telecommunication link being separate from public telecommunication networks;transmitting said identifications of the A-subscriber and the C-subscriber to said service node by using said second telecommunication link;initiating a third telecommunication link from said service node to the A-subscriber;initiating a fourth telecommunication link from said service node to the C-subscriber;maintaining said third telecommunication link in a call-waiting state until said fourth telecommunication link has been established;informing the collection node when the service node receives an answer signal from the C-subscriber; anddisconnecting the first telecommunication link and establishing the third telecommunication link so that said telecommunication connection between the A-subscriber and the C-subscriber is established.