SENDSMS communication utility


Description 
Parameters
Return codes
Examples
Changes and modifications
Document revisions

Description


The sendsms.exe program is used for sending text SMS by means of GSM modems. Tested by using a GSM modem of the Ericsson GM12 type. Modem must support AT set of commands for work with SMS according to the ETSI GSM 07.05 standard.

Parameters


Command line parameters:

sendsms TO: number SCA: number [PIN: number] [-h TcpHost] [-p TcpPort] -m messfile | "message"

Parameter Description
TO: number Number of a GSM mobile phone along with the GSM operator prefix. E.g. the GSM Orange-SK number 0905/432454 must be entered as 0905432454. Required parameter.
SCA: number Number  of a message center for sending messages. The number must be defined in the full format along with the character "+" before the number. Message center number of Orange-SK must be defined as +421905303303, T-mobile SK as +421903333000 and O2-SK as +421949909909. Required parameter.
PIN: number If SIM card is blocked by a PIN code, it must be defined by means of the parameter.
-h TcpHost If AT commands are not sent via serial line, parameter defines host whit which the utility should create TCP connection.
-p SerialPort/TcpPort Serial communication port entered in the form of COMx (e.g. COM2). In case of TCP communication, this parameter defines TCP port, to which the utility is to be connected.
-m messfile Contents of the SMS message to send is stored in the file messfile.
"message" Contents of the SMS to sent. If a sequence \n is in the message, the sequence will be replaced by the characters CR and LF.

Note: For sending a message, there must be defined either the parameter message or -M messfile. Parameters are evaluated from the left to the right.

Return codes


Return code Meaning
0 OK, error-free SMS transmission.
1 Incorrect or missing parameter, the program lists the error specification.
2 Serial port error (doesn't exist, busy, etc.).
3 GSM modem is not connected to given port or is not running.
4 Error when entering a PIN code (invalid PIN code).
5 Error when the modem executes AT commands. The program lists the error specification.
6 SMS message probably was not sent in order.
7 Problem when initiating physical interface (serial / TCP/IP).

Examples


Sending a SMS to the GSM Orange-SK number of 0905111222 via the Orange-SK message center number +421905303303, message contents is defined in the command line:

sendsms PIN: 1234 TO: 0905111222 SCA: +421905303303 ”This is a SMS contents”

Sending a SMS to the GSM Orange-SK number of 0905333444 via the Orange-SK message center number +421905303303, message contents is stored in the file C:\Messages\sms1.txt :

sendsms PIN: 1234 TO: 0905333444 SCA: +421905303303 –m C:\Messages\sms1.txt

Changes and modifications


  • December 16, 2014 - updating

Document revisions


  • Ver. 1.0 – May 31st 2000 – creating document
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