Abstract: A method for facilitating the design and assignment of virtual networks, such as virtual local area networks (VLANs). The method includes receiving a request to add a new node to a base virtual network including a number of base nodes. A plurality of potential routes are determined between the new access node and the base nodes. For each potential route, a virtual network total hub value is determined. The virtual network total hub value is the sum of a hub value for each base node and a hub value for the new node. The hub value is determined for a node in response to bandwidth received at the node multiplied by a number of trunks traversed in reaching the node. One of the potential routes yielding the minimum virtual network total hub value is selected.

Abstract: LNP databases are made locally accessible to one or more CNAM SCP to avoid network traffic associated with LNP routing determinations required with the advent of providers local number portability. All CNAM service queries are routed to the one or more CNAM SCPs for processing. Service routing is determined from the local accessible LNP databases without additional network traffic associated with such routing determinations in conventional systems. Four classes of service provider are defined. Queries for telephone services are routed in accordance with the class of service provider.

Abstract: Methods and systems are disclosed that allow for the exchange of voice mail messages between different VMSs of different service providers and/or in different networks by the transmission of such messages through a data network using a standard protocol of the data network.