free running mode

[lupengfei]

Some people know how Nokia's flexi zone micro/pico series base station clock is set to free running mode, achieving an environment without GPS clock calibration. To my knowledge, the macro base station FL19 version began to support free running mode, but this setting was not found in the micro/pico series FLF19/FLF20 versions. From which version did the micro/pico series start supporting free running mode?