Cellular network infrastructure as support for inbound roaming users
First Claim
1. Apparatus for routing at least one cellular trigger for a roaming cellular user having a home cellular network and a roaming cellular network, at least the roaming cellular network having an infrastructure that supports passing of call control functions from the roaming cellular network to a compatible home network, said roaming cellular network having a call control processing unit for carrying control functions for calls, the apparatus comprising:
- an interception unit associated with said roaming network for intercepting said call triggers issued in association with said infrastructure and directed at a respective call control processing unit of said home network, and a redirector, associated with said interception unit for redirecting said call triggers to a respective call control unit of said roaming network, thereby to allow said roaming network call control unit to carry out at least one call control function.
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Accused Products
Abstract
The CAMEL standard allows a roaming user to have his call or any other telephony service, say SMS and GPRS, controlled and services provided from his home network. The invention allows infrastructure triggers to be intercepted at the roaming network so that the roaming network can identify the roamer and make use of the triggers to provide services. This is possible irrespective of whether the roamer'"'"'s home network supports the infrastructure.
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Citations
21 Claims
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1. Apparatus for routing at least one cellular trigger for a roaming cellular user having a home cellular network and a roaming cellular network, at least the roaming cellular network having an infrastructure that supports passing of call control functions from the roaming cellular network to a compatible home network, said roaming cellular network having a call control processing unit for carrying control functions for calls, the apparatus comprising:
an interception unit associated with said roaming network for intercepting said call triggers issued in association with said infrastructure and directed at a respective call control processing unit of said home network, and a redirector, associated with said interception unit for redirecting said call triggers to a respective call control unit of said roaming network, thereby to allow said roaming network call control unit to carry out at least one call control function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Method for obtaining at least one call control function for a roaming cellular user having a home cellular network and a roaming cellular network, at least the home cellular network having an infrastructure that supports passing of call triggers from the roaming cellular network to a compatible home network, each network having a call control processing unit for carrying out functions for calls, the method comprising:
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intercepting call triggers issued in association with said infrastructure and directed at a respective call control processing unit of said home network, and redirecting said call triggers to a respective call control unit of said roaming network, thereby to allow said roaming network call control unit to carry out at least one call control function. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A cellular network able to support home users and roaming users and having a services infrastructure for providing support to outbound roamers, the network comprising:
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an interception unit for intercepting event signals from inbound roamers requesting support from respective home networks; and
a redirection unit for redirecting said event signals to provide support to said inbound roamers from said services infrastructure for providing support to outbound roamers.
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Specification