AT Command Set
MC35_ATC_01_V05.00 Page 151 of 256 15.07.2002
Reference
GSM 07.05
General remarks:
· Parameters <mt>=2,3 and <ds>=1 are only available with GSM phase 2+ (see
+CSMS=1). Incoming SMs or Status Reports have to be acknowledged with
AT+CNMA=0 when using these phase 2+ parameters.
· The parameters <ra> and <tora> will only be displayed if AT^SSCONF=1 h as
been set before. See Chapter 8.38 for details on AT^SSCONF.
· To allow SMS overflow presentation during data transfers via Bre ak, use
AT+CNMI=3,1 (see Chapter 8.15).
Handling of Class 0 short messages:
· If the host application is provided with a display and AT^SSD A=1 has been set
Class 0 short messages can be displayed immediately. Refer to Chapter 8.3 9
for details.
· If the host application does not include a display, ME handles Class 0 short
messages as though there was no message class, i.e. it will ignore bits 0 a nd 1
in the TP-DCS and normal rules for exceeded memory capacity shall apply.
This approach is compliant with GSM 03.38.
Requirements specific to Multiplex mode:
· In multiplex mode (AT+CMUX=0) only one channel can use a phase 2+ p a-
rameter. The parameter for <mt> and <ds> on the other channels have to be
set to zero.
· If either a SM or a Status Report is not acknowledged, all +CNMI param eters
will be set to zero on all channels.