At+Chld Call Hold And Multiparty - Quectel M35 Command Manual

AT+CCWA=1,1
OK
ATD10086;
OK
+CCWA: "02154450293",129,1

12.7. AT+CHLD Call Hold and Multiparty

AT+CHLD Call Hold and Multiparty
Test Command
AT+CHLD=?
Write Command
AT+CHLD=[<n>]
Reference
GSM 07.07
Parameter
<n> 0
1
1X
2
2X
3
NOTE
M35_AT_Commands_Manual
Response
+CHLD: (list of supported <n>s)
OK
Response
TA controls the supplementary services call hold, multiparty
and explicit call transfer. Calls can be put on hold, recovered,
released, added to conversation and transferred.
OK
If error is related to ME functionality:
+CME ERROR: <err>
Terminate all held calls or UDUB (User Determined User Busy) for a waiting call. If
a call is waiting, terminate the waiting call. Otherwise, terminate all held calls (if
any)
Terminate all active calls (if any) and accept the other call (waiting call or held
call). It can not terminate active call if there is only one call
Terminate the specific call number X (X= 1-7)( active, waiting or held)
Place all active calls on hold (if any) and accept the other call (waiting call or held
call) as the active call
Place all active calls except call X (X= 1-7) on hold
Add the held call to the active calls
// Enable presentation of an unsolicited result code
// Establish a call
// Indication of a call that has been waiting
Confidential / Released
GSM/GPRS Module
M35 AT Commands Manual
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