Switch it is then...
/ip firewall connection tracking set udp-timeout=300s /ip firewall service-port disable sip
Probably because was late at night, but I can't find itRead the slide of mum on venice 2014 mum.mikrotik.com
Indeed. Never had any freezing/crashing problems with mipsbe boards...Wow, i haven't seen any mikrotik crashing, but these CCRs looks to have many problems