Hi,
Thank you for your help.
I have followed the steps in the teltonika decomentation but I have these errors:
usuario@usuario-VirtualBox:~/RUT/rutos-mdm9x07-trb1-gpl$ make package/network/services/zerotier/compile
WARNING: Makefile 'package/teltonika/qualcomm/data/Makefile' has a build dependency on 'qti-common-headers', which does not exist
WARNING: Makefile 'package/teltonika/qualcomm/data/Makefile' has a build dependency on 'android-system-core-headers', which does not exist
WARNING: Makefile 'package/teltonika/qualcomm/libcutils/Makefile' has a build dependency on 'android-system-core-headers', which does not exist
WARNING: Makefile 'package/teltonika/qualcomm/libqmi-ex/Makefile' has a build dependency on 'qti-common-headers', which does not exist
time: target/linux/prereq#0.12#0.05#0.17
make[1] package/network/services/zerotier/compile
make[2] -C package/libs/toolchain compile
ERROR: package/libs/toolchain failed to build.
make -r package/network/services/zerotier/compile: build failed. Please re-run make with -j1 V=s or V=sc for a higher verbosity level to see what's going on
/home/usuario/RUT/rutos-mdm9x07-trb1-gpl/include/toplevel.mk:232: fallo en las instrucciones para el objetivo 'package/network/services/zerotier/compile'
make: * [package/network/services/zerotier/compile] Error 1
Best Regards.