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  1. #1
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    Jan 2007
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    8

    Unhappy GSM Codes - Unstructured Supplementary Service Data (USSD)

    Hello,

    my service provider supports setting the call forward option+number via USSD.
    e.g. **62*017812345678# redirects any incoming call to 017812345678, if the phone has no network connection.

    because my phone has no connection at my working place i want to redirect all incoming calls to my landline phone number.

    i want to switch my call forward settings programmatically.

    is anybody out there who has a clue how to emit an USSD or how to access the internal modem so i could use an AT Command, which would also allow me to send an USSD request.

    i like my N9 very much but sometimes i get really upset because its so hard to write an app for it. (i come from android)


    PS: i have read about ofono which seems to support USSD. but i have absolutely no idea if its possible to use ofono on the N9.
    Last edited by werty1st; 2012-07-09 at 20:58. Reason: hint about ofono

  2. #2
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    Jun 2009
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    4

    Re: GSM Codes - Unstructured Supplementary Service Data (USSD)

    Try running "pnatd" on a terminal (e.g. using SSH to the N9) and type some AT commands there. Eg.:

    $ pnatd
    ATI
    Nokia

    OK

  3. #3
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    Question Re: GSM Codes - Unstructured Supplementary Service Data (USSD)

    thank you very much for your help.

    but it seems that pnatd does not support the USSD codes i need to use. your hint lead me to a thread on a meamo forum.
    they had success with sending USSD codes.
    at
    at+cusd=1,"*100#",15
    +CUSD: 0,"Ihr Guthaben f\x81r die Nr.491234567890 betr\x84gt 13.53 Euro",15
    however, on the meego n9 this does not seem to work
    /home/developer $ pnatd -d
    ATI
    Nokia
    OK

    at+cusd=1,"*#21#",15
    ERROR
    for now i have written a simple app which calls openuri("tel:##21#"). this is not very elegant because i have to click on the number every time. what i need is an automatable solution. i want to redirect calls while i am on a specific location where my network conectivity is not good enough to receive phone calls.

    i read much about ofono. is it possible to install ofono to the N9?

  4. #4
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    Jan 2007
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    8

    Re: GSM Codes - Unstructured Supplementary Service Data (USSD)

    today a found this thread.

    but i tried it and had no luck with devel-su or develsh.

    ~$ devel-su
    ~$ phone-at
    at
    OK
    at+cmgf=1
    ERROR
    cant anybody say if this is possible with meego or not?

  5. #5
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    Jan 2007
    Posts
    8

    Lightbulb Re: GSM Codes - Unstructured Supplementary Service Data (USSD)

    i have news to the topic:
    http://www.developer.nokia.com/Commu...l=1#post389336

    the interesting part:
    Post #6
    If you would just follow what I said earlier you would have gotten it to work. As I said that call forwarding is 21-commands are NOT USSD commands, you can not utilize CUSD for executing them, instead you gotta read the manual and find the actual CALL FORWARDING AT command and use it.
    i am now trying to find the "real" at command.
    first time i get no error: (as root)
    AT+CKPD=”*#21#”
    OK
    the problem with this code is that # and * are ignored. only the numbers where entered on screen (which is also unpratical). in the end the number is not called/sent.

    ATD*#21#
    ERROR
    AT+CCFC=0,3,”0146290800”
    ERROR
    Note: Register to an unconditional call forwarding
    i tried all of the codes from this pdf with no success.
    i was so full of hope...
    Last edited by werty1st; 2012-07-14 at 23:46.

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