At+Cusd Unstructured Supplementary Service Data - Quectel EC25 Command Manual

Parameter
<n> Integer type. Sets/shows the +CSSI intermediate result code presentation status to the
TE
0
1
<m> Integer type. Sets/shows the +CSSU unsolicited result code presentation status to the
TE
0
1
<code1> Integer type. It is manufacturer specific and supports the following codes:
0
1
2
3
5
<code2> Integer type. It is manufacturer specific and supports the following codes:
0
2
3
5
10
NOTES
1. When <n>=1 and a supplementary service notification is received after a mobile originated call setup,
the +CSSI intermediate result code is sent to TE before any other MO call setup result codes:
+CSSI: <code1>
2. When <m>=1 and a supplementary service notification is received during a mobile terminated call
setup or during a call, the +CSSU unsolicited result code is sent to TE:
+CSSU: <code2>

11.8. AT+CUSD Unstructured Supplementary Service Data

The command allows control of the Unstructured Supplementary Service Data (USSD) according to
3GPP TS 22.090. Both network and mobile initiated operations are supported.
Parameter <mode> is used to disable/enable the presentation of an unsolicited result code. The value
<mode>=2 is used to cancel an ongoing USSD session. For an USSD response from the network, or a
network initiated operation, the format is: +CUSD: <status>[,<rspstr>,[<dcs>]].
EC25&EC21_AT_Commands_Manual
Disable
Enable
Disable
Enable
Unconditional call forwarding is active
Some of the conditional call forwardings are active
Call has been forwarded
Waiting call is pending
Outgoing call is barred
The incoming call is a forwarded call
Call has been put on hold (during a voice call)
Call has been retrieved (during a voice call)
Held call was terminated by another party
Additional incoming call forwarded
LTE Module Series
EC25&EC21 AT Commands Manual
186 / 231