[Freeswitch-users] all-reg-options-ping don't work

Hello there, I've set the options all-reg-options-ping and registration-thread-frequency on multiple gateway profile, but they don't seem to work. siptrace on those profiles don't show any activity. I've put them in the settings part of the profiles. What do I miss? How do I enable options ping on gateways (for example every 20 seconds)? Thanks,