Extended number portability database services
First Claim
Patent Images
1. 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.
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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.
14 Citations
20 Claims
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1. A method of routing calls through a communications network comprising the steps of:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. A system for routing calls through a communications network comprising:
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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. - View Dependent Claims (7, 8, 9, 10)
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11. 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:
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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. - View Dependent Claims (12, 13, 14, 15, 17, 18, 19, 20)
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16. 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:
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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.
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Specification