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Sending SMS
Text messages transmitted from an external device to the 4G.VoLTE
CAN, through the DB-9 connector, are sent via SMS when they comply
with the following format:
ES^SMSX…X:Y…Y<CTRL+Z>
where:
ES^SMS
string start
X...X
telephone number on which the SMS must be sent
Y...Y
message text to be sent (max. 160 characters)
<CTRL+Z>
non-editable character defining end of text
The SMS can be sent to the number programmed for notifications (code
40). In this case, the text format is required to be as follow:
ES^SMS:Y…Y<CTRL+Z>
Note: to send SMS, the 4G.VoLTE must be correctly
registered to the mobile network and the SIM card
must be topped up.
Note: for CAN-bus communication please refer to
corresponding documentation.
Notifications sent from 4G.VoLTE CAN to the external device:
String
Meaning
^SMSREC<CTRL+Z>
SMS t
aken in charge
^SMSOK<CTRL+Z>
SMS sent correctly
^SMSERROR<CTRL+Z>
error in sending the SMS
^SMSBUSY<CTRL+Z>
4G.VoLTE CAN being registered to the network or not
registered
