Rainbow Electronics GM862-QUAD-PY - Manual (Page 99)

AT Commands Reference Guide
80000ST10025a Rev. 5 - 09/07/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 99 of 434
+CCWA - Call Waiting SELINT 0 / 1
originating network
Note: if parameter <cmd> is omitted then network is not interrogated.
Note: in the query command the class parameter must not be issued.
Note: the difference between call waiting report disabling (AT+CCWA =
0,1,7) and call waiting service disabling (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; 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 has no effect a non sense and must
not be issued.
Note: issuing AT+CCWA<CR> is the same as issuing the Read command.
Note: issuing AT+CCWA=<CR> is the same as issuing the command
AT+CCWA=0<CR>.
AT+CCWA? Read command reports the current value of the parameter <n>.
AT+CCWA=? Test command reports the supported values for the parameter <n>.
Reference GSM 07.07
+CCWA - Call Waiting
SELINT 2
AT+CCWA=
[<n>[,<cmd>
[,<class>]]] Set command allows the control of the call waiting supplementary service.
Activation, deactivation, and status query are supported.
Parameters:
<n> - enables/disables the presentation of an unsolicited result code:
0 - disable
1 - enable
<cmd> - enables/disables or queries the service at network level:
0 - disable
1 - enable
2 - query status
<class> - is a sum of integers each representing a class of information
which the command refers to; default is 7 (voice + data + fax)
1 - voice (telephony)
2 - data
4 - fax (facsimile services)
8 - short message service
16 - data circuit sync
32 - data circuit async
64 - dedicated packet access
128 - dedicated PAD access