Nokia 30 GSM Connectivity Terminal At Command Manual page 72

PDU mode:
The +CMGR command returns a message with the location value <index> from the preferred
message storage to the TE. The status of the message and the entire message data unit
<pdu> is returned. If the status of the message is 'received unread', the status in the storage
changes to 'received read'.
Defined values
<index> integer type; value in the range of the location numbers
<stat> integer type in the PDU mode (default 0), or string type in text mode; indicates
the status of the message in the memory:
0
1
2
3
4
<oa>/<da> GSM 03.40 TP-Originating/Destination-Address Address-Value field in string
format; the type of address is given by <tooda>/<toda>
<scts> GSM 03.40 TP-Service-Centre-Time-Stamp in time-string format
<tooa>/<toda>/<tora>
octet in integer format
129
145
<fo> first octet of GSM 03.40 SMS-DELIVER, SMS-SUBMIT, SMS-STATUS-
REPORT, or SMS-COMMAND in integer format
<pid> GSM 03.40 TP-Protocol-Identifier in integer format
<dcs> GSM 03.38 SMS Data Coding Scheme in integer format
<sca> GSM 04.11 RP SC address Address-Value field in string format, type of
address given by <tosca>
<tosca> GSM 04.11 RP SC address Type-of-Address octet in integer format
129
145
<length> integer type value that indicates the length of the message body
"REC UNREAD" received unread message (i.e. new message)
"REC READ" received read message
"STO UNSENT" stored unsent message (only applicable to SMs)
"STO SENT" stored sent message (only applicable to SMs)
"ALL" all messages (only applicable to the +CMGL command)
GSM 04.11 TP-Originating/Destination-Address Type-of-Address
unknown/telephony
internal/telephony
unknown/telephony
internal/telephony
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