• PPP/ GPRS

    From d.sbenaissa@gmail.com@21:1/5 to Anupama on Mon Jul 13 02:11:52 2020
    On Friday, November 1, 2002 at 7:10:23 PM UTC+1, Anupama wrote:
    I am trying to access my GPRS Modem (Sierra Wireless AirCard 710 -
    PCMCIA) programatically. I am facing two problems.

    1. The first time I send ATD*99#, I get a CONNECT. Soon after I get a
    NO CARRIER. Subsequently whenever I send ATD*99# I get an ERROR.
    Cannot get any reason even tho' I have AT+CMEE=2. AT+CEER also does
    not return a reason back. What step am I missing? I tried putting an AT+CGATT=0 and AT+CGACT=0,1 but even tho' I get a detach and a PDP
    Context deactivation, ATD*99# still returns ERROR.

    2. After CONNECT, the modem sends LCP packets and I am succesfully
    able to negotiate LCP. The modem does not send any IPCP or any other
    packets after LCP is UP. So I send out an IPCP packet, but the modem
    does not respond. Soon after it returns NO CARRIER. What am I supposed
    to send after LCP is ACKed?

    I am willing to try all possible theories so please send any
    suggestions that u have.

    Thanks,
    Anupama



    Hi,
    I arrived to connect the modem sara-r412m.
    AT+CREG?


    AT+CGDCONT=1,"IP","telenor.iot","0.0.0.0",0,0


    AT+CGPADDR=1


    ATD*99*213.239.83.90*PPP*1#



    ATD*99*213.239.83.90*PPP*1#
    CONNECT 150000000

    ppp connect failed
    I have a problem to use pppos. i got this problem 'ppp connect failed'

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  • From Onez Device@21:1/5 to All on Thu Jul 13 00:39:36 2023
    Vào lúc 01:10:23 UTC+7 ngày Thứ Bảy, 2 tháng 11, 2002, Anupama đã viết:
    I am trying to access my GPRS Modem (Sierra Wireless AirCard 710 -

    1. The first time I send ATD*99#, I get a CONNECT. Soon after I get a
    2. NO CARRIER. Subsequently whenever I send ATD*99# I get an ERROR.

    ***You need to setup your GPRS profile, according with your network operator settings with the command, AT+CGDCONT = "settings".

    https://onezdevice.com - Phone Specifications and Prices in the USA

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