Extended number portability database services
OwnerLila Madour, Shabnam Sultanainventors
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Abstract
A system and method for providing portability of internet addressing maintains additional IP addressing information in number portability databases located throughout provider domains in a telecommunications network. This additional IP addressing information, in conjunction with additional Number Portability Request messaging information, permits portability of addresses across telecommunication and data communication networks in a transparent fashion.
Claims20
A method of routing calls through a communications network comprising the steps of:
- a) initiating a call from a first subscriber in a call-originating domain to a second subscriber in a data communications domain;
- b) transmitting a first message from a first node in said call-originating domain to a database in said call-originating domain;
- c) locating a current data communication network node parameter in said database, wherein said network node parameter is associated with said second subscriber;
- d) transmitting a second message that includes said located data communication network node parameter from said database to said first node;
- e) routing said call from said first node to a data communications address indicated by said located data communication network node parameter;
- and
- f) updating said database when said second subscriber changes membership from a first communication network provider to a data communication network provider.
A system for routing calls through a communications network comprising:
- means for initiating a call from a first subscriber in a call-originating domain to a second subscriber in a data communications domain;
- means for transmitting a first message from a first node in said call-originating domain to a database in said call-originating domain;
- means for locating a current data communication network node parameter in said database, wherein said network node parameter is associated with said second subscriber;
- means for transmitting a second message that includes said located data communication network node parameter from said database to said first node;
- means for routing said call from said first node to a data communications address indicated by said located data communication network node parameter;
- and
- means for updating said database when said second subscriber changes membership from a first communication network provider to a data communication network provider.
A method of routing calls through a communications network, the communications network having a set of domains, at least one of the domains in said set of domains being a data communications domain, the method comprising the steps of:
- accessing, in a call-originating domain included in the set of domains, a database to obtain an address of a node of the data communications domain which currently serves a called subscriber;
- and
- including the address of the data communications domain which currently serves said called subscriber as a parameter in a routing message for routing a call from the call-originating domain to said node of said data communications domain.
A system for routing calls through a communications network, the communications network having a set of domains, at least one of the domains in said set of domains being a data communications domain, comprising:
- means for accessing, in a call-originating domain included in the set of domains, a database to obtain an address of a node of the data communications domain which currently serves a called subscriber;
- and
- means for including the address of the data communications domain which currently serves said called subscriber as a parameter in a routing message for routing a call from the call-originating domain to said node of said data communications domain.
Dependencies are inferred from the claim text.