Patent ID: 6570979
Filing Date: 2003-05-27
Classification: H04M,H04Q

Abstract:
A method for establishing a call connection from a calling A-subscriber to a called B-subscriber in a telecommunication (TC) network that offers intelligent network (IN) services, in particular in a multi-operator environment with IN-supported telephone number portability, characterized in that, upon determination of a target address of the called B-subscriber, a service, which is requested by the calling A-subscriber for establishment after connecting the current call, is compared to a stored service profile of the called B-subscriber in order to automatically determine whether the service requested is supported by B-subscriber, and in the event of a determined incompatibility, a corresponding negative release message is sent to the calling A-subscriber, whereupon the TC network breaks off establishment of the connection before the current call is connected,wherein the service requested for the current call by the calling A-subscriber is characterized by a parameter sent along with the current call.