I've some problems with my um+. Yesterday i've tried to call 3 of my national sim: calls leave ok, but my national sim (wind,vodafone) don't receive the calling.
Have you the same problem?
[COLOR="Magenta"]"Working" PrePaids: Wind, Vodafone, CoopVoce, , Travelsim (2), 02 Irish (2)
My best sim?--> Wind +39-328
My phones:
Samsung Galaxy Next S5570