Receive binary data from my SMS

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  • June 19, 2013 at 1:03 pm #2943
    Laurent ROUX
    Participant

    Hi,

    I have some SMS who contain binary data like this “21 8B 84 00 0C 40 00 00 8A 44 A0 A3” (i write ascii codes) and i try to read them with the HTTP API (or the TCP API) and some caracters are transformed in “20” like this “21 8B 84 20 20 40 20 20 20 44 A0 A3” by the iSMS SF400-G-EU.

    Can you help me?

    June 20, 2013 at 8:16 pm #4554
    Bryon Davis
    Moderator

    Hi Laurent,

    Are you using 7 bit ASCII?

    By default the iSMS using PCCP437 7-bit character set, which doesn’t support many special characters. If an unsupported character is in a message, the iSMS replaces that character with a space (20).

    It may help if you update to the v1.51.14 firmware which has support for 3GPP 23.038 character set. This character set supports many more special characters. This firmware also has support for PDU mode which may also help with sending special characters.

    The settings for the Character Set and PDU mode are in the SMS Settings menu.

    You can find the v1.51.14 firmware on our FTP site at:

    SF100:

    https://webfiles.multitech.com/engineering/unofficial-releases/iSMS%20(Formerly%20SMSFinder)/Firmware/SF100/1.51.14/SF100-u-v1.51.14-02Apr2013.bin.zip

    SF400 and SF800:

    https://webfiles.multitech.com/engineering/unofficial-releases/iSMS%20(Formerly%20SMSFinder)/Firmware/SF400_SF800/1.51.14/SF400-800-u-v1.51.14-02Apr2013.bin.zip

    Regards,

    Bryon

    June 21, 2013 at 3:02 pm #4555
    Laurent ROUX
    Participant

    Hi Davis,

    I use 8 bit character and i use all hexa code (from 0x00 to 0xFF).

    I will test the firmware 1.51.14 and i tell you if it’s better.

    Regards.

    August 13, 2013 at 3:36 am #4614
    Laurent ROUX
    Participant

    Hi Davis,
    I tests the firmware 1.51.14 and i still have some truncated characters with 0X20. I need full 8 bits data in receive mode.
    A next firmware can help me?

    Regards

    August 13, 2013 at 8:20 am #4615
    Bryon Davis
    Moderator

    Hi Laurent,
    Unfortunately we are treating incoming data as text, so any value that isn’t a displayable ASCII character is set to 20. The only way to get raw binary data from the modem is to control the modem directly by doing telnet to the iSMS on port 5000 (for modem 1) to 5007 (for modem 8), but then you would have to manage all modem functions yourself. The iSMS won’t send or receive anything from the modem while a telnet to a modem is connected.

    Regards,
    Bryon

    September 12, 2013 at 9:08 am #4675
    Laurent ROUX
    Participant

    Hi,
    I will try to manage the isms. Have you some documents that it describe the “AT” commands of the isms?

    Regards

    September 16, 2013 at 4:03 pm #4692
    Bryon Davis
    Moderator

    Hi Laurent,
    The current wireless modem on the iSMS is the GPRS G2 Modem. Below is a link to document that covers this modem’s AT commands. The previous F4 modem also uses most of the same AT commands.

    http://www.multitech.com/en_US/DOCUMENTS/Collateral/manuals/S000463F.pdf

    Regards,
    Bryon

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