Patent ID: 8977757
Filing Date: 2015-03-10
Classification: H04L

Abstract:
1. A method implemented by a third party service provider for retrieving a network service address of at least one network service, the method comprising: activating an application of the third party service provider from a mobile station via a first network; establishing an IMS session between the third party service provider and the mobile station via a first Internet Protocol Multimedia Subsystem (IMS) network provided by a first IMS operator, and via a second IMS network provided by a different, second IMS operator; and retrieving, at the application of the third party service provider, a network service address of at least one network service offered by the first IMS network, wherein the network service address has been inserted into a mobile originated SIP message of the IMS session at a session managing node of the first IMS network; wherein the first network is separate from both the first IMS network and the second IMS network; and wherein the third party service provider has no business agreement with the first IMS operator but does have a business agreement with the second IMS operator.