[fsotirop]

in Greece and Turkey where i used piranha simcard i never experienced a calling problem.

but i have some other minor problems with them,
if piranha simcards had per second billing with existing rates within EU and cheaper local numbers (not like 4.25pounds per month for eg Greek numbers) i would definately use their simcard more and we might switch our business simcards to piranha ones too.
they (piranha) also charge per 100kb increment in data roaming..despite 10kb of camemobile or 1kb of travelsim.
i have inform piranha about these 3 disadvantages of their simcards, but they have not fix them yet.