PPP/ GPRS

[d***@gmail.com]

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'

[Onez Device]

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