some more info - using /flash seems to "flash" just fine, so i guess it's just /echo problem. althought it flashesh 1 more time than specified - for example "/timer 1 1 flash -r1 a" produces 2 flashes smile
and beeping still doesnt work, for example "/timer 1 1 flash -b1 a" produces no beep whatsoever, neither with any other value i tried.

And all I need now is intellectual intercourse, a soul to dig the hole much deeper