Hello.
I’m trying to use an EG25 for connecting to the Internet and sending data. First, I configure all the parameters of the context with the following commands: AT+QICSGP and AT+QIACT. Then, I use ATD*99# to make a call. It works perfectly, and I get an IP.
When I want to switch to command mode, I use “+++”. I ask for GPS and other data. It works perfectly as well.
The issue is when I want to return to data mode again. I send the ATO command, but the response is NO CARRIER. I’ve tried to hang up the data call and make it again, but the issue is the same: NO CARRIER.
What could be the solution to this problem? Is there another way to return to data mode after command mode?
Thanks.