TCP/IP Stack and Version

Can Quectel please let us know which TCP/IP stacks are used in their parts and their version numbers? We are using EC20 and EC25-AF.



Do you have any special requirements on TCP/IP protocol stack version for your application or R&D?
Currently, the protocol stack built in our module is the common TCP/IP protocol stack version, which can be applied to most applications and services, but there is no relevant AT Command to query.