Cinterion
®
EHS6 AT Command Set
9.14 AT+CUSD
EHS6_ATC_V03.001 15/12/3
Confidential / Released
Page 223 of 513
Unstructured Supplementary Service Data (USSD) to be sent to the network.
If <ussdReq> parameter is not given, network is not interrogated. AT+CUSD write command only supports set-
ting <ussdDCS>=15.
Unstructured Supplementary Service Data (USSD) received from the network.
If <ussdDCS> indicates that 3GPP TS 23.038 [35] GSM 7 bit default alphabet is used, the ME converts GSM
alphabet into current TE character set according to rules of 3GPP TS 27.005 [44], Annex A. See also Section
1.7, Supported character sets. However, in case of invalid or omitted <ussdDCS>, conversion of <ussdRsp> is
not possible.
3GPP TS 23.038 [35] Cell Broadcast Data Coding Scheme (default 0).
In case of an incoming USSD with invalid or omitted data coding scheme information <ussdDCS> will not be
presented.
0 No further user action required (network initiated USSD notification, or no fur-
ther information needed after mobile initiated operation).
1 Further user action is required (network initiated USSD request, or further infor-
mation is needed after mobile initiated operation).
If <ussdStatus>=1 the URC ends with ">" to prompt the TE for the response
data. The input action is terminated with <CTRL-Z> or aborted with <ESC>.
2 USSD exchange is terminated by network.
3 A (ME local) client has responded, i.e. the interface was not idle and a busy
indication was sent to the network.
4 Operation not supported (e.g. wrong input value given).
5 Network timeout.
Note
• It is recommended to finalize or escape a pending USSD user interaction before further actions are done to
prevent blocking situations.
<ussdReq>
(str)(+CSCS)
<ussdRsp>
(str)(+CSCS)
<ussdDCS>
(num)
<ussdStatus>
(num)
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