| 摘要 |
Interactive subscriber telephone terminals have a display screen and softkeys which are controlled by management software. The management software may be downloaded from a remote server to control the display and softkeys. Different techniques for achieving this download are described. In one case each subscriber terminal has a memory in which can be preloaded a list of one or more Calling Line ID numbers corresponding to the telephone number of a server(s). If a server dials the subscriber terminal the calling line ID is compared with the list and, if there is a match, the terminal immediately goes off-hook and follows the protocol for a Server Initiated Download. In an alternative case each subscriber terminal is capable of calling out to predetermined server lines to obtain the ADSI scripts. This dial out of stored telephone numbers may be done on an automatic timed basis or may be initiated by a server calling a pager embedded in the subscriber terminal.
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