today i check caller id from betamax operator (for ex.:
www.voipdiscount.com)
not support ID to polish operators
but to manx operators (virtual) it WORKS
My Phones: Nokia 6310i, 2310, 6280, SPV M650, SE T290i;
My VoIP Phones: wifi Linksys WIP330; wifi BELKIN (Skype), Linksys Gates
PostPaid: Orange Idea PL
PrePaids "Working": PL: SimPlus (plusgsm), PoP (orange), mbank(mvno plusgsm), snickers (mvno orange); INT: +447642 Easy Roam
PrePaids "Deceased": UK: O2, Vodafone, FreeGlobalSim, Sim4TheWorld;
My VoIP operators: skype, & BETAMAX