Method and apparatus for call delivery
First Claim
Patent Images
1. A method of routing calls in a communication network, the method comprising:
- receiving a call from a calling party directed to a roaming subscriber at a first network entity in the subscriber'"'"'s home network;
obtaining call routing information for the subscriber from a database in the subscriber'"'"'s home network and starting an answer timer;
determining the current location of the subscriber;
connecting the call to a second network entity servicing the subscriber in a visited network;
upon receiving an indication that the subscriber has not answered the call, releasing the connection to the second network entity;
obtaining late call forwarding information for the subscriber from the database; and
completing the call to a late call forwarding destination in the home network based on the late call forwarding information.
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Accused Products
Abstract
A method and system for forwarding calls in telecommunication networks are provided. More particularly, control of late call forwarding logic and routing is placed at the home network Gateway MSC and HLR, thus removing the home network service provider'"'"'s dependency on the visited network capabilities.
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Citations
10 Claims
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1. A method of routing calls in a communication network, the method comprising:
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receiving a call from a calling party directed to a roaming subscriber at a first network entity in the subscriber'"'"'s home network; obtaining call routing information for the subscriber from a database in the subscriber'"'"'s home network and starting an answer timer; determining the current location of the subscriber; connecting the call to a second network entity servicing the subscriber in a visited network; upon receiving an indication that the subscriber has not answered the call, releasing the connection to the second network entity; obtaining late call forwarding information for the subscriber from the database; and completing the call to a late call forwarding destination in the home network based on the late call forwarding information. - View Dependent Claims (2, 3, 4)
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5. A subscriber registration method in a communication network, the method comprising:
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receiving a request from a visited mobile switching center for a roaming subscriber'"'"'s call routing information; obtaining the subscriber'"'"'s call routing information from a subscriber database located in the subscriber'"'"'s home network, wherein the subscriber'"'"'s call routing information and the subscriber'"'"'s late call forwarding information are stored in the subscriber database; and sending the subscriber'"'"'s call routing information to the visited mobile switching center, wherein the subscriber'"'"'s call routing information does not include late call forwarding features or destination information for the subscriber. - View Dependent Claims (6)
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7. A system for routing calls in a communication network, the system comprising:
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a database for storing subscriber profile information; and a gateway mobile switching center, wherein the mobile switching center is operative to; receive a call from a calling party directed to a roaming subscriber in the subscriber'"'"'s home network; obtain call routing information for the subscriber from the database and start an answer timer in the subscriber'"'"'s home network; determine the current location of the subscriber; connect the call to a visited mobile switching center servicing the subscriber in a visited network; upon receipt of an indication that the subscriber has not answered the call, release the connection to the visited mobile switching center; obtain late call forwarding information for the subscriber from the database; and complete the call to a late call forwarding destination in the home network based on the late call forwarding information. - View Dependent Claims (8, 9, 10)
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Specification