Markport Limited

Simon Dumbleton

Jim Plimmer

Ian Birchall

James Greenwood

An originating SMSC in Network A issues an SRI-SM towards the HLR of a recipient (User B in Network B). One of a number of N Platforms or Message Controllers ('MCOs') intercepts the SRI-SM. Instead of passing on the SRI-SM, the MCO terminates it and performs a full decode of all fields, specifically extracting the recipient MSISDN from it. The MCO then constructs a new SRI-SM for the same MSISDN, but forcing the new request to ask for all available data, including, but not necessarily limited to visited-MSC address, SGSN address and IP-SM-GW address. When a response is received the MCO generates a fresh query response for the originating SMSC instead of merely routing on the response which it receives. If the MCO is programmed to provide a false address for smart services it incorporates the false address in the query response which it generates.

Method, apparatus and computer readable medium for terminating and newly constructing a send routing information (SRI) message in mobile networks

An application on a server submits the message to a gateway () (which it sees as a service centre). The gateway performs interaction with external applications on servers such as charging and then instead of storing transaction related information associated with this message, it packages the transaction information along with the message as inter-working data. The gateway then forwards the message including the inter-working data to the service center, while requesting a delivery receipt. The service centre may generate a message-id for this transaction, but no data relating to the transaction now needs to be stored by the gateway. The gateway () then informs the application that it has successfully stored the message for delivery. When the message reaches a complete state in the service centre the service centre () sends the gateway () a delivery receipt including the service centre generated message-id and the inter-working data. At this point the gateway no longer needs to retrieve transaction information relating to this message (based on service centre and message-id), as the data is already present in the message. On inspection of the transaction information the gateway can determine whether the original application requested the delivery receipt, and if so, forward the receipt to the application. Dependent on the resulting state of the message and any transaction information, the gateway may interact with external servers again. At this stage the gateway () then generates a Call Detail Record and acknowledges receipt of the delivery receipt.

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Lower Earley, United Kingdom

Simon Dumbleton