Fibocom G510 - CUSD, Unstructured Supplementary Service Data

G5/G6-Family AT Commands User Manual Page
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Example:
AT+CSSN=? // test command
+CSSN: (0-1),(0-1)
OK
AT+CSSN=0,0 // disable both options
OK
AT+CSSN=1,0 // set n value as enabled, m disabled
OK
AT+CSSN?
+CSSN: 1,0 // display the current n & m values
OK
+CSSI: 1 // displayed after mobile originated call setup of call forward and n enable
+CSSU: 2 //displayed when a call has been placed on hold (during the call) using the +CHLD
AT command and m enable
5.3.2 +CUSD, Unstructured Supplementary Service Data
This command allows control of Unstructured Supplementary Service Data (US SD), according to GSM
02.90.
Both network and mobile initiated operations are supported. Parameter <n> is used to disable/enable the
presentation of an unsolicited result code (USSD response from the network, or network initiated
operation) +CUSD: <m>[,<str>,<dcs>] to the TE. In addition, value <n>=2 is used to cancel an ongoing
USSD session. 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.
Command
Syntax
Response/Action
Remarks
Set
AT+CUSD=
[<n>[,<str>[,
<dcs>]]]
OK
or:
+CME ERROR: <err>
The Set command
enables/disables the display of
the unsolicited result code.
Unsolicited
Report
+CUSD:
<m>[,<str>[,<dsc>]]]
The USSD response from the
network.
Read
+CUSD?
+CUSD: <n>
OK
The Read command displays
the current value of <n>.