BG96: LTS ALPN extension to connect toAWS IoT at TCP port 443

IoT Modules LPWA Module
1

Is there any way to implement TLS ALPN extension to comunicate with AWS IoT over MQTT stack in BG96 ?
I would like to connect to AWS IoT over port 443 and they say that ALPN “x-amzn-mqtt-ca” is a requirement.
Currently I’m using BG96 with the MQTT protocol embedded on it (AT+QMTxx commands)

Thanks in advance

2

To connect AWS mqtt ， I attach one AT log and one doc for your reference ， since the policy of AWS is changing ， The latest CA requirements are subject to the official website of AWS. thanks

https://cnquectel-my.sharepoint.com/:f:/g/personal/america-fae_quectel_com/Ev776ZjLo5tFoMgU3Q-F0YkBvDHsROyANdi_lXDrVUQWCw?e=ePIzFN

3

This doc and link doesn’t help with setting ALPN.
AWS custom authentication asks us to set the TLS extension ALPN to “mqtt”

I am using BG96 module and accessing it over AT commands from my microcontroller. How can I set the ALPN on my module?