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UC100-1T1S1O User Manual
Copyright©2011-2016 Dinstar
91
Note: Group sending of SMS is not allowed.
5.8.8
USSD
USSD (Unstructured Supplementary Service Data) is a global system service for mobile
(GSM) communication technology that is used to send text between a mobile phone and an
application
program in the network.
USSD is similar to Short Messaging Service (SMS), but, unlike SMS, USSD transactions
occur
during the session only. With SMS, messages can be sent to a mobile phone and stored
for several
days if the phone is not activated or within range.
Figure 5-68 USSD
Table 5-31 Explanation of USSD Parameters
USSD Code
USSD code is a special number starting with * or #, followed by 2~3
digits, then ending with #;
Service provider feedbacks a service menu to user according to this
USSD code.
Encode
Supports auto, 7-bit and UCS2;
7-bit is used to send original ASCII, while UCS2 is used to send any
languages
USSD Message The Content of the USSD message