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<index> location number
<length> length of the actual PDU in octets
<pdu> GSM 03.40 Protocol Data Unit in hexadecimal format
AT+CMGR Read Message
This command returns a message with the location value <index>
from a preferred message storage selected with the AT+CPMS com-
mand. Syntax:
AT+CMGR=<index> Read message. Response is +CMGR:
<stat>,<length>, <CR><LF> <pdu>.
Parameters:
<index> location number
<stat>
0 received unread message
1 received read message
2 stored unsent message
3 stored sent message
<length> length of the actual PDU in octets
<pdu> GSM 03.40 Protocol Data Unit in hexadecimal format
AT+CMGS Send Message
This command sends a message to the network. The message refer-
ence value <mr> is returned to the DTE on successful message de-
livery. Sending can be cancelled by using the <ESC> character.
<ctrl-Z> must be used to indicate the ending of a message body.
Syntax:
AT+CMGS=<length><CR><pdu><ctrl-Z/ESC> Send message. Re-
sponse is +CMGS:<mr>.
Parameters:
<length> length of the actual PDU in octets
<pdu> GSM 03.40 Protocol
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