Gemalto Cinterion EHS6 - 9.6 AT+CCWA Call Waiting

Cinterion
®
EHS6 AT Command Set 
9.6 AT+CCWA
 EHS6_ATC_V03.001 15/12/3
Confidential / Released
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9.6 AT+CCWA Call Waiting
The AT+CCWA write command controls the "Call Waiting" supplementary service according to 3GPP TS 22.083
[31]. Activation, deactivation and status query are supported. The read command returns the current value of
<n>. 
Syntax

Unsolicited Result Code
Indication of a call that is currently waiting and can be accepted.
+CCWA: <calling number>, <type of number>, <class>, , <CLI validity>
If <n>=1 and the call waiting supplementary service is enabled in the network, URC "+CCWA" indicates a waiting
call to the TE. It appears while the waiting call is still ringing.

Parameter Description
0 Disable display of "+CCWA" URC
1 Enable display of "+CCWA" URC
Test Command
AT+CCWA=?
Response(s)
+CCWA:(list of supported <n>s)
OK
Read Command
AT+CCWA?
Response(s)
+CCWA:<n>
OK
Write Command
AT+CCWA=[[<n>][, <mode>][, <class>]]
Response(s)
If <mode> is not equal 2 and command successful:
OK
If <mode>= 2 and command successful:
+CCWA: <status>, <class>
[+CCWA: <status>, <class>]
[+CCWA: ...]
OK
If error is related to ME functionality
+CME ERROR: <err>
PIN  Last Reference(s)
+ - - 3GPP TS 27.007 [45], 
3GPP TS 22.004 [25], 
3GPP TS 22.083 [31], 
3GPP TS 24.083
<n>
(num)