CoAP on BC92: AT-Commands not working

IoT Modules LPWA Module
1

Hello all! I want to send some data over NB-IoT network via CoAP protocoll with the BC92-TE-B evalboard. The Network connection seems fine and I have an IP address assigned. I am using the CoAP AppNote by Quectel https://forums.quectel.com/uploads/short-url/wcsP63I2G298iGZ7OMkTCXZRAMS.pdf

The problem: For the CoAP configuration, it seems that none of the CoAP-related AT commands work. Everytime I enter a CoAP-AT-Command, “+CME ERROR: invalid command line” is returned (same return-value like any other arbitrary string).

AT+QCOAPCFG="dtls",0
*+CME ERROR: invalid command line*

AT+QCOAPOPTION=?
*+CME ERROR: invalid command line*

Firmware version is BC92RBR01A05.

Can anybody help?

2

Check whether other AT commands can be used. If they fail, they are not supported, or the current firmware version does not support it