Routing calls with overflows in a private network
AssigneeAlcatel
InventorsCao Thanh Phan, Jacques Litteaut
Life of this patent
Estimating the term…
Abstract
A method of routing a call in a private network, with overflow (alternate routing) onto another network, calculates various routes for setting up the call, with one or more overflows onto the other network, and chooses a route as a function of the overflow cost and the number of overflows. This minimizes the overflow cost and maximizes the use of private network resources. Taking the number of overflows into account limits the call setup time.
Claims20
A method of routing a call between terminals of a private network, said private network comprising overflow links to another network, said method comprising:
- calculating various routes for setting up said call between said terminals with one or more overflow links to said other network, said route calculation including said overflow links when at least one link in said private network is congested, and
- choosing a route as a function of an overflow cost and the number of overflow links, wherein said overflow links route the call back into the private network.
A call routing mechanism for routing a call at least in part through a private network and at least in part through another network connected to said private network via overflow links, wherein said call is between terminals of said private network, said call routing mechanism comprising:
- a route calculating circuit configured to calculate routes for setting up said call between said terminals, each calculated route using at least one of said overflow links, said route calculation including said overflow links when at least one link in said private network is congested, and
- a decision circuit configured to choose a calculated routes based on an overflow cost and the number of overflow links in each route, wherein said overflow links route the call back into the private network.
Dependencies are inferred from the claim text.