SIM 900 ,CALL TO A MOBILE NUMBER

Discussion in 'Wireless & RF Design' started by AJIN NADH, Feb 11, 2016.

  1. AJIN NADH

    Thread Starter Member

    Dec 18, 2014
    79
    4
    Hi all,
    I used to make a call using sim 900 module by sending serial at commands to module,

    I used the at command_ ATD+890766***;
    but i get a response line"NO CARRIER"

    I checked the signal strength its showing 30,

    What may be the issue , am attaching a jpeg, Whether i have to set any pin?


    Untitled.jpg



    Regards,
    Ajin nadh v a
     
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