ESP-AT data mode requires existing socket

[ntremble]

Looking at the documentation for ESP-AT, it appears transparent/data mode operation requires a TCP socket be created before data mode is entered.

Typically, for a cellular modem, this is not the case. The modem registers on the network, enters data mode, then data is transparently transferred bidirectionally without the modem being involved at the socket level i.e. the controlling MCU has an IP stack. The modem presents a PPP server to the host MCU. As I am sure you are aware, this is how your own esp-modem component works.

It is possible for Wi-Fi modems to operate in like fashion. I have one that does so sitting on my desk as I type this. It is currently under evaluation against the ESP32-C5 for incorporation in our next project.

My question is: are Espressif intending to add this functionality [for ESP32-C5/C6 in particular], or must we use wifi-remote and avoid ESP-AT altogether?

[esp-at]

Hi, you can see this command: AT+SAVETRANSLINK
https://docs.espressif.com/projects/esp ... n-power-up