Siemens AC75 Manual De Usuario

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AC75_ATC_V01.002

Page 251 of 569

10/30/06

Confidential / Released

 allows control of the Unstructured Supplementary Service Data (USSD) according to GSM 02.90. Both

network and mobile initiated operations are supported. The interaction of this command with other commands

based on other GSM supplementary services is described in the GSM standard. 

Parameter 

 is used to disable/enable the presentation of an unsolicited result code (USSD response from

the network, or network initiated operation) "

]]" to the TE. 

When parameter 

 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 result code "

+CUSD: 

]]

URC "+CUSD" indicates an USSD response from the network, or network initiated operation 

0

(&F)

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 response) 

String type USSD-string (when 

 parameter is not given, network is not interrogated). 

For the write command, only 

= 15 is supported. 

Test Command

AT+CUSD=?

Response(s)

+CUSD: 

(list of supported

OK

Read Command

AT+CUSD?

Response(s)

OK

Write Command

[, 

[, 

Response(s)

OK

+CME ERROR

Reference(s)

PIN

ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge

4

Last

GSM 07.07, GSM 02.90, GSM 03.90, 

GSM 04.90

<n>

(num)

<str_write>

(str)