| 摘要 |
<p>In order to control an external device (3), which may be associated with or remote from a terminal such as a mobile telephone (2), the terminal (2) sends a control request, for example in the form of an SMS message, to a telecommunications network (1). The network (1) converts the request into a control code which is in a form ready for controlling the external device (3). The control code is embedded in an SMS message which is then transmitted from the network (1) to the device (3), which has a GSM or other module associated with it in order to allow the embedded control code to be received, extracted, and supplied to the device (3) to perform the requested operation or function.</p> |
