MC55 AT Command Set
9.13 AT+CUSD s
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MC55_ATC_V01.05 Page 241 of 469 2/10/04
Confidential / Released
9.13 AT+CUSD Supplementary service notifications
This command allows control of the Unstructured Supplementary Service Data (US SD) according to GSM 02.90.
Both network and mobile initiated operations are supported.
Syntax
Unsolicited Result Code
+CUSD: <m>[<str>[<dcs>]]
URC "+CUSD" indicates an USSD response from the network, or network initiated operation
Command Description
The read command returns the current <n> value
Write command parameter <n> is used to disable/enable the presentation of an unsolicited r esult code (USSD
response from the network, or network initiated operation) "+CUSD: <m>[<str>[<dcs>]]" to the TE.
When <str> is given, a mobile initiated USSD string or a response USSD string to a network initiated operation
Test Command
AT+CUSD=?
Response(s)
+CUSD: (list of supported<n>s)
OK
Read Command
AT+CUSD?
Response(s)
+CUSD: <n>
OK
Write Command
AT+CUSD=<n>[, <str>[, <dcs>]]
Response(s)
OK
+CME ERROR
PIN ASC0 ASC1 MUX1 MUX2 MUX3
% % % % % %
Reference(s)
GSM 07.07, GSM 02.90, GSM 03.90,
GSM 04.90