| 摘要 |
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. This avoids need to modify the incoming response and allows considerable additional versatility. For example the MCO may provide a number of false addresses, depending on how it generates the query response. |
