| 摘要 |
A mobile telephone network stores a list of short dialling codes in association with each user's identity so as to define the short codes which each individual user is permitted to use for providing access to a data conversion device PAD/PH1, which gives access to a private network PDN1. When a short code is dialled on a mobile station MS1, calling data comprising the short code together with caller identification data derived from the mobile station MS1 are transmitted over the radio link 1 to the mobile switching centre MSC1. Prior to routing the call, the identity of the dialling station MS1 is authenticated. The short code in the calling data is then compared with the permitted list of short codes to determine whether the user is permitted to make the call. If the caller is permitted to make the call, the call is routed to a destination corresponding to the data conversion device PAD/PH1. Thus, only permitted users may access the data conversion device PAD/PH1. Furthermore, it is possible for a network operator to configure the data conversion device (PAD/PH1) such that an operator can offer a subscriber a fixed relationship between a code and a data conversion device. The device can then be configured with subscriber-specific information so as to make onward communications easier and more professional, for example through personalised welcome pages, simplified access to user-specific data, etc. |
