WM620 AT
Command Manual
Copyright © Neoway Technology Co., Ltd
74
7.3 Call Holding and Multi-party Conversation: +CHLD
Description
To set call on hold and add it to a conversation
Format
AT+CHLD=<n> <CR>
AT+CHLD=? <CR>
Parameter
<n>: (sets/shows the result code presentation status to the TE)
0: Releases all held calls, or sets User-Determined User Busy for a waiting call
1: Releases all active calls and accepts the other (waiting or held) call
1x: Releases the specific active call X
2: Places all active calls on hold and accepts the other (held or waiting) call’
2x: Places all active calls, except call X, on hold
3: Adds a held call to the conversation
4: Connects two calls and disconnects the subscriber from both calls
5: Activates the Completion of Calls to Busy Subscriber Request. (CCBS)
Return Value
See the Example.
Example
AT+CHLD=0
OK
Release all held calls.
ATD10010;
OK
SPEECH ON
ALERTING
CONNECT
AT+CHLD=11
SPEECH OFF
RELEASE
OK
Release first call.
AT+CHLD=?
+CHLD: (0, 1, 1x, 2, 2x, 3, 4)
OK
Query the value range of the
parameter <n>.
