I am trying to find why no URCs are issued when I am doing echo on my SARA R410
When using SARA N211 I always got an URC when I get an UPD packet on a socket.
Using the SARA R410 this does not seem to happen. Is there a setting I am missing?
I send a UDP packet to my own echo server via AT+USOST
I can see that I receive it and the echo server sends it back. I do not get an URC when it is received but if I wait a couple of seconds and issue AT+USORF on the socket I get the packet. So it is received. But why no URC that indicate that it is received?
I am trying to measure roundtrip times of packages and I can't depend on waiting a set amount of seconds to see if the data came back. I need it as soon as it arrives.
What can i do?