I wrote AT and pressed enter and repeated it multiple time.
Below is what i got in response:
02:22:01.835 -> +OK
02:22:01.835 ->
02:22:04.562 -> +ERR=-1
02:22:04.562 ->
02:22:06.430 -> +OK
02:22:06.430 ->
02:22:29.110 -> +ERR=-1
02:22:29.110 ->
02:22:31.085 -> +OK
02:22:31.132 ->
02:22:32.895 -> +ERR=-1
02:22:32.895 ->
02:22:35.200 -> +OK
02:22:35.200 ->
02:22:37.005 -> +ERR=-1
02:22:37.005 ->
02:22:38.841 -> +OK
02:22:38.841 ->
Why i am getting this alternate pattern of OK? What is ERR=-1 and ERR=-3 ??
