Patent ID: 8111712
Filing Date: 2012-02-07
Classification: H04L,H04W

Abstract:
1. An apparatus, comprising: a subscriber configured to perform a subscription to a dialog event package including an internet protocol multimedia subsystem communication service identifier of an ongoing session or part of an ongoing session between a source apparatus and a target apparatus, said internet protocol multimedia subsystem communication service identifier identifying an internet protocol multimedia subsystem communication service of the session or part of the session, a detector configured to detect the internet protocol multimedia subsystem communication service identifier in the dialog event package, a checker configured to check the detected internet protocol multimedia subsystem communication service identifier, and a retriever configured to retrieve the ongoing session or part of the ongoing session by the apparatus depending on the internet protocol multimedia subsystem communication service identifier, the session or part of the session being transferred so as to be continued between the source apparatus and the apparatus instead of between the source apparatus and the target apparatus.