UC864
UC864
UC864
UC864----E/G/WD/WDU
E/G/WD/WDU
E/G/WD/WDU
E/G/WD/WDU AT Commands Reference Guide
AT Commands Reference Guide
AT Commands Reference Guide
AT Commands Reference Guide
80304ST10041a Rev. 6
80304ST10041a Rev. 6
80304ST10041a Rev. 6
80304ST10041a Rev. 6 ---- 2010
2010
2010
2010----0
00
05
55
5----20
20
20
20
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Page 97 of 329
+CCWA
+CCWA
+CCWA
+CCWA ---- Call Waiting
Call Waiting
Call Waiting
Call Waiting
Note: the difference between call waiting report disabling (AT+CCWA =
AT+CCWA =
AT+CCWA =
AT+CCWA =
0,1,7
0,1,7
0,1,7
0,1,7) and call waiting service disabling (AT+CCWA = 0,0,7
AT+CCWA = 0,0,7
AT+CCWA = 0,0,7
AT+CCWA = 0,0,7) is that in the
first case the call waiting indication is sent to the device by network but
this last one does not report it to the DTE
DTE
DTE
DTE; instead in the second case the
call waiting indication is not generated by the network. Hence the device
results busy to the third party in the 2
nd
case while in the 1
st
case a ringing
indication is sent to the third party.
Note: The command AT+CCWA=1,0
AT+CCWA=1,0
AT+CCWA=1,0
AT+CCWA=1,0 has no effect a non sense and must
not be issued..
AT+CCWA?
AT+CCWA?
AT+CCWA?
AT+CCWA?
Read command reports the current value of the parameter <n>
<n>
<n>
<n>.
AT+CCWA=?
AT+CCWA=?
AT+CCWA=?
AT+CCWA=?
Test command reports the supported values for the parameter <n>
<n>
<n>
<n>.
Reference
3GPP TS 27.007
3.5.4.3.12.
Call Holding Services
Call Holding Services
Call Holding Services
Call Holding Services ---- +CHLD
+CHLD
+CHLD
+CHLD
+CHLD
+CHLD
+CHLD
+CHLD ---- Call Holding Services
Call Holding Services
Call Holding Services
Call Holding Services
AT+CHLD=[<n>]
AT+CHLD=[<n>]
AT+CHLD=[<n>]
AT+CHLD=[<n>]
Execution command controls the network call hold service. With this
service it is possible to disconnect temporarily a call and keep it suspended
while it is retained by the network, contemporary it is possible to connect
another party or make a multiparty connection.
Parameter:
<n>
<n>
<n>
<n>
0 - releases all held calls, or sets the UDUB (User Determined User Busy)
indication for a waiting call. (only from version D)
1 - releases all active calls (if any exist), and accepts the other (held or
waiting) call
1X - releases a specific active call X
2 - places all active calls (if any exist) on hold and accepts the other (held
or waiting) call.
2X - places all active calls on hold except call X with which
communication shall be supported (only from version D).
3 - adds an held call to the conversation
4 - Connects the two calls and disconnects the subscriber from both calls
(ECT).
Note: "X" is the numbering (starting with 1) of the call given by the sequence
of setting up or receiving the calls (active, held or waiting) as seen by the
served subscriber. Calls hold their number until they are released. New
calls take the lowest available number.
Note: where both a held and a waiting call exist, the above procedures apply
to the waiting call (i.e. not to the held call) in conflicting situation.