Siemens MC35 User Manual
AT Command Set
MC35_ATC_01_V05.00
Page 132 of 256
15.07.2002
4.48 AT+CUSD Unstructured supplementary service data
Test command
AT+CUSD=?
Response
+CUSD:
(list of supported <n>s) OK
Parameter
See write command
Read command
AT+ CUSD?
Response
TA returns the current <n> value.
+CUSD: <n> OK
If error is related to ME functionality:
+CME ERROR: <err>
+CUSD: <n> OK
If error is related to ME functionality:
+CME ERROR: <err>
Write command
AT+ CUSD=
<n>[,<str>[,<dcs>]]
<n>[,<str>[,<dcs>]]
This command allows control of the Unstructured Supplementary Service
Data (USSD) according to GSM 02.90. Both network and mobile initiated op-
erations are supported. Parameter <n> is used to disable/enable the presen-
tation of an unsolicited result code (USSD response from the network, or net-
work 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 is sent to the network. The response
USSD string from the network is returned in a subsequent unsolicited +CUSD
result code.
The interaction of this command with other commands based on other GSM
supplementary services is described in the GSM standard.
Data (USSD) according to GSM 02.90. Both network and mobile initiated op-
erations are supported. Parameter <n> is used to disable/enable the presen-
tation of an unsolicited result code (USSD response from the network, or net-
work 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 is sent to the network. The response
USSD string from the network is returned in a subsequent unsolicited +CUSD
result code.
The interaction of this command with other commands based on other GSM
supplementary services is described in the GSM standard.
Parameter
<n>
0
disable the result code presentation in the TA
1
enable the result code presentation in the TA
2
cancel session (not applicable to read command re-
sponse)
sponse)
<str>
string type USSD-string (when <str> parameter is not given, net-
work is not interrogated).
work is not interrogated).
If <dcs> indicates that GSM 03.38 default alphabet is used
ME/TA converts GSM alphabet into current TE character set ac-
cording to rules of GSM 07.05 Annex A.
ME/TA converts GSM alphabet into current TE character set ac-
cording to rules of GSM 07.05 Annex A.
<dcs>
GSM 03.38 Cell Broadcast Data Coding Scheme in integer for-
mat (default 15)
mat (default 15)
<m>
0
no further user action required (network initiated USSD-
Notify, or no further information needed after mobile initi-
ated operation)
Notify, or no further information needed after mobile initi-
ated operation)
1
further user action required (network initiated USSD-
Request, or further information needed after mobile initi-
ated operation)
Request, or further information needed after mobile initi-
ated operation)
2
USSD terminated by network
Response
OK
If error is related to ME functionality:
+CME ERROR: <err>
If error is related to ME functionality:
+CME ERROR: <err>
Reference
GSM 07.07
Note
· For the write command <dcs>=15 is supported only.
· On an unsolicited result code with parameter <m>=1 a '> ' is given for fur-
ther user action. The user action is finished with a <ctrl-Z> or aborted with
<ESC>.
<ESC>.