Quectel EC25

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 178 / 231
Parameter
1. <status>=0 should be returned only if service is not active for any <class> i.e. +CCWA: 0, 7 will be
returned in this case.
2. When <mode>=2, all active call waiting classes will be reported. In this mode the command is
aborted by pressing any key.
3. Unsolicited result code:
When the presentation call waiting at the TA is enabled (and call waiting is enabled) and a terminating
call set up during an established call, an unsolicited result code is returned:
+CCWA: <number>,<type>,<class>[,<alpha>]
Example
AT+CCWA=1,1 //Enable presentation of an unsolicited result code
OK
ATD10086; //Establish a call
Maximum Response Time
300ms
Reference
3GPP TS 27.007
<n> 0 Disable presentation of an unsolicited result code
1 Enable presentation of an unsolicited result code
<mode> When <mode> parameter is not given, network is not interrogated
0 Disable
1 Enable
2 Query status
<class> A sum of integers, each integer represents a class of information
1 Voice (telephony)
2 Data (bearer service)
4 FAX (facsimile)
16 Data circuit synchronization
32 Data circuit asynchronization
<status> 0 Disable
1 Enable
<number> Phone number in string type of calling address in format specified by <type>
<type> Type of address octet in integer format
129 Unknown type (IDSN format number)
145 International number type (ISDN format )
<alpha> Optional string type alphanumeric representation of <number> corresponding to the entry
found in phone book
NOTES