SARA-R4/N4 series - AT Commands Manual
UBX-17003787 - R09
9 Short Messages Service
Page 66 of 307
9 Short Messages Service
9.1 Introduction
For a complete overview of SMS, see 3GPP TS 23.040 [
].
In case of errors all the SMS related AT commands return an error result code as defined in
9.1.1 Class 0 SMS
The storing of a class 0 SMS depends on the module series:
• SARA-R4 / SARA-N4 - not stored.
9.1.2 <index> parameter range
The <index> parameter range depends on the memory storage type:
ME
(ME message),
SM
((U)SIM message)
MT
(ME + SM):
• SARA-R4 / SARA-N4
o Values between 0 and 23: SMS stored in ME.
o Values between 0 and n: SMS stored in SIM (n depends on SIM card used).
BM
(Broadcast Message):
• SARA-R4 / SARA-N4 - Broadcast Message storage is not supported.
SR
(Status Report)
• SARA-R4 / SARA-N4 - Status Report storage is not supported.
9.1.3 Limitations
The following limitations apply related to the SMS usage:
Single SMS
• 160 characters if <dcs>= "GSM 7 bit default alphabet data"
• 140 octets if <dcs>= "8-bit data"
• 70 UCS2 characters (2 bytes for each one) if <dcs>="16-bit uncompressed UCS2 data"
Concatenated SMS
(where supported) - "8-bit reference number" type
• 153 characters if <dcs>= "GSM 7 bit default alphabet data"
• 134 octets if <dcs>= "8-bit data"
• 67 UCS2 characters (2 bytes for each one) if <dcs>="16-bit uncompressed UCS2 data"
Concatenated SMS
(where supported) - "16-bit reference number" type
• The limits are the same as the "8-bit reference number" type, but are decreased by one unit.
A concatenated SMS can have as many as 255 parts.
9.2 Select message sCSMS
+CSMS
SARA-R404M SARA-R410M-01B SARA-R410M-02B SARA-R410M-52B SARA-R412M
Modules
SARA-N4
Syntax
PIN required
Settings saved Can be aborted
Response time Error reference
Attributes
full
Yes
No
No
-
9.2.1 Description
Selects the <service> message service. It returns the types of messages supported by the MT.