Hi everyone,
When attempting to exit Direct Link Mode and return to AT Command Mode, the standard +++ sequence initially failed due to timing issues and improper handling by the modem. To resolve this, we utilized the octal representation of the +++ sequence (\053\053\053) and transmitted it through the UART. This method ensured the exact ASCII values were sent without any unintended characters or delays, enabling the modem to reliably recognize the escape sequence and transition back to AT Command Mode. This approach successfully resolved the issue and provided a robust solution for exiting Direct Link Mode.