Method for, and a topology aware resource manager in an ip-telephony system

The present invention relates to a method and arrangement in a communications network. The object of the present invention is to provide a way of handling recourse management issues and admission control within an IP telephony system. The object is achieved by a topology aware resource manager collecting routing information concerning the IP network, obtaining resource information concerning resources within the IP network, creating a resource map by means of combing said routing information and resource information, and performing recourse management issues and admission control within the system by means of said resource map and by interacting with a gatekeeper.