SIM868 not getting call

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This topic contains 1 reply, has 2 voices, and was last updated by  Admin 1 month, 3 weeks ago.

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  • #33844 Reply

    Bhushan

    Greetings,
    I am using SIM868 module. I am able to get GPS message and also able to read messages of SIM. Previously I was using SIM800A and I was able to make call to the sim interfaced with SIM800A.
    But here with SIM868 I am not able to make call. I transmitted some commands using PIC microcontroller.
    These are its outputs
    AT
    OK
    AT+CFUN=1
    OK
    AT+CSCLK=0
    OK
    AT+CSQ
    +CSQ: 0,0
    OK
    AT+CREG=1
    OK
    AT+COPS=0,2
    OK
    AT+COPS?
    +COPS: 0
    OK
    +CREG: 2
    +CREG: 0
    +CREG: 2
    +CREG: 0
    +CREG: 2

    And last 2 lines are keep on repeating. What is wrong?
    Kindly suggest.
    Thanks
    Regards
    Bhushan

    #33889 Reply

    Admin
    Keymaster

    Hi Bhusan,

    AT+CSQ
    +CSQ: 0,0
    OK

    Above response indicates that the SIM868 has not found any network yet and AT+COPS=0,2 indicates that the module is still searching for the network.

    Things to check,
    – Antenna connector to the module
    – Signal condition where you’re testing
    – Does the module supports the bands of the network provider?

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