command
send
Introduction
CSCA
Set SMS Service Center Number
IPR
Set the interface rate of Modem, 0 is the automatic rate
CNMI
AT CNMI = 2, 2
Set the output of SMS
Cmgf
AT CMGF = 1
Set SMS coding mode (1 text format, 0 is PDU format)
Cmgs
AT cmgf = 1 ok
AT cmgs = 13501154105> AAA <^ z>
Cmgs: 204
OK
Send SMS instructions, an example is a text manner in text. If the Chinese must use a PDU mode, please see
CSAS
Set information storage instruction
AT & W
Set information storage instruction
Send Chinese short message format:
First send AT cmgs = yyy [cr]; where YYY is TPDU's decimal length
Received [>] [sp] response
[TPDU] [CTRL-Z]
[TPDU]: Send a statute data unit:
Type 11
MR 00
DA 0D91683105114501F5; "13501154105"
PID 00
DCS F4
VP 01
UDL XX; XX is not more than 8C
DD; user data for XX bytes
The last byte in the user data is a bit byte of the previous XX-1 byte.
The length of the PDU status head before the user data in the TPDU is 15 bytes.
The length of the service center address [SCA] before the TPDU is 9 bytes.
The following example is sent to 13501154105 (coded by PDU format 16)
The message is Hello
Decode
044F60597D
04 length
Data 4F60597D Chinese word internal code
AT command
AT cmgs = 019
return
>
send
0011000d91683105114501f5000801044f60597d sender ^ z
00
No specified SMS center number, press CSCA number 1100
fixed format
TP-DA: TP-DESTINATION-Address
0D Address-Length
Target number length (13 digits)
91 TYPE-OF-Address
Target Number Type (International)
683105114501F5 Address-value
Target Number (8613501154105)
00 TP-PID: TP-PID: TP-Protocol-Identifier Fixed Format 08 TP-DCS: TP-DATA-CODING-Scheme 08 is 16 bits, up to 70 Chinese characters; 04 is 8 bits, up to 140 characters; 00 is 7 bits Up to 160 characters 01 TP-VP: TP-VALIDY-Period Validity period, default 167 (24 hours) 04
TP-UDL: TP-User-Data-LENGTH
User Data Length (4 characters)
4F60597D
TP-UD: TP-User-Data
User data "Hello"
Receive Chinese short message format:
[SCA]: Service Center Address, Beijing: 0891683108100005F0; 13800100500
The following is example
CMT:, 24
0891683108100005F0040D91683105114501F50008107020597D08 SMSC-LENGTH
SMS center number length
91 TYPE-OF-SMSC
SMS Center Number Type (International)
68 31 08 10 00 05 F0 SMSC-VALUE
SMS center number (8613800100500)
04 FIRST-OCTET Fixed Format 0D
Address-Length Source Number Length (13) 91
TYPE-OF-Address Source Number (International) 68 31 05 11 45 01 F5 Address-Value Source Near (8613501154105) 00 TP-PID: TP-Protocol-Identifier Fixed Format 08 TP-DCS: TP-DATA-CODING- Scheme 08 is 16 bits, up to 70 Chinese characters; 04 is 8 bits, up to 140 characters; 00 is 7 bits, up to 160 characters 10702051146423
TP-SCTS: Non-monthly day and time difference 04
TP-UDL: TP-User-Data-LENGTH
User Data Length (4 characters)
4F60597D
TP-UD: TP-User-Data
User data "Hello"
The following is three examples of using the PDU format 7 bits encoding English characters SMS
l Send AB1 three characters
CMT:, 23
0891683108100005F0
040d91
683105114501F2
0000
10700261354023
03
41610C
l Send AB two characters
CMT:, 22
0891683108100005F0
040d91
683108315771F1
0000
10700271505523
02
4121
l Send Abcdefgh eight characters
CMT:, 27
0891683108100005F0
040d91
683105114501F2
0000
10700271822223
08
41E19058341E91
