An architectural solution in which standalone ad-hoc network cells are used as an extension of the backbone infrastructure in terms of network architecture or/and its service capabilities is provided. These Ad-Hoc networks will integrate to the Internet via cellular and other access networks. This integration brings new possibilities to network operators and ISP's. In its extended architecture, it is envisaged that the mobility issues are handled by utilizing the IP mobility capabilities, taking into account the mobile mesh Ad-Hoc specific requirements. A trunk node is elected from among nodes within a service area of an Ad-Hoc domain that underlies an access domain. The trunk node acts as a gateway between the nodes within the Ad-Hoc domain and a backbone access network. The election can be performed by the trunk node itself or by a radio resource management entity.