SimCom SIM7500 Series At Command Manual page 172

Defined values
<index>
Integer type; value in the range of location numbers supported by the associated memory and start
with zero.
<stat>
1.Text Mode：
"REC UNREAD" received unread message (i.e. new message)
"REC READ"
"STO UNSENT"
"STO SENT"
2. PDU Mode：
0 – received unread message (i.e. new message)
1 – received read message.
2 – stored unsent message.
3 – stored sent message
<oa>
Originating-Address, Address-Value field in string format; BCD numbers (or GSM 7 bit default
SIM7500_SIM7600 Series_AT Command Manual_V1.07
If text mode (AT+CMGF=1), command successful and SMS-
SUBMIT:
+CMGR:<stat>,<da>,[<alpha>][,<toda>,<fo>,<pid>,<dcs>,[<vp>],
<sca>, <tosca>,<length>]<CR><LF><data>
OK
If text mode (AT+CMGF=1), command successful and SMS-
STATUS-REPORT:
+CMGR: <stat>,<fo>,<mr>,[<ra>],[<tora>],<scts>,<dt>,<st>
OK
If text mode (AT+CMGF=1), command successful and SMS-
COMMAND:
+CMGR:<stat>,<fo>,<ct>[,<pid>,[<mn>],[<da>],[<toda>],<length
>]<CR><LF><data>
OK
If text mode (AT+CMGF=1), command successful and CBM
storage:
+CMGR:<stat>,<sn>,<mid>,<dcs>,<page>,<pages><CR><LF><d
ata>
OK
If PDU mode (AT+CMGF=0) and Command successful:
+CMGR:<stat>,[<alpha>],<length><CR><LF><pdu>
OK
+CMS ERROR: <err>
received read message
stored unsent message
stored sent message
Smart Machine Smart Decision
171 2017-12-25