The optimized FTD and MTD variants are primarily tailored for Matter, where TCP is not used. Adding unneeded features would add unnecessarily to memory requirements.
For the full set of features you can use the Master variant.
Alternatively, it should be possible to add TCP features to the FTD or MTD variant by configuring and building OpenThread from sources (CONFIG_OPENTHREAD_SOURCES). Please note however that custom builds like that are not necessarily covered by our Thread certifications. Please contact the certification body in the Thread Group, if you need clarification whether or not it would be acceptable to receive Certification by Inheritance for the Optimized MTD/FTD variant built from sources with TCP enabled. For instance, some additional testing may be required.
The optimized FTD and MTD variants are primarily tailored for Matter, where TCP is not used. Adding unneeded features would add unnecessarily to memory requirements.
For the full set of features you can use the Master variant.
Alternatively, it should be possible to add TCP features to the FTD or MTD variant by configuring and building OpenThread from sources (CONFIG_OPENTHREAD_SOURCES). Please note however that custom builds like that are not necessarily covered by our Thread certifications. Please contact the certification body in the Thread Group, if you need clarification whether or not it would be acceptable to receive Certification by Inheritance for the Optimized MTD/FTD variant built from sources with TCP enabled. For instance, some additional testing may be required.
