Network arrangement and method for handling sessions in a telecommunications network

摘要

The present invention relates to a novel network arrangement and method for handling sessions or calls in a communications network. More particularly, the invention provides a novel network arrangement and method for avoiding "ghost calls" in IP based communications networks for achieving higher session completion rates. An inventive network arrangement comprises at least the following: a session border controller (140) for monitoring and/or controlling available resources for sessions involving a user terminal and for determining a busy condition if a new session's resource requirements are in excess of the available resources and for notifying an origination of the new session upon if a busy condition exists; and an application server (152) receiving a session completion request from the new session's origination and for establishing the session after the busy condition has ceased. The invention is useful if the busy condition is encountered at a destination and also if the busy condition is encountered at the new session's origination, i.e. if a calling user's available resources are insufficient to accommodate the newly requested session.