Is UM the best for this...

[Przemolog]

Originally Posted by TheMadBrewer

From the international SIMs that help support PPGSM as far as I can tell only UM has reasonable "subscriber-to-subscriber" rates. The others seem to charge it as a call to a home country mobile.

Since I already have a UM SIM I was leaning that way, but with all the recent reported problems I'm not adverse to switching. So do any of your international SIMs have really good subscriber to subscriber rates?

Don't forget the 25 cents setup fee in UM.
You'll really pay 64 cents for 1 minute, 1.03 euro for 2 minutes, 1.42 for 3 minutes. For short calls (up to 2 minutes) Travelsim with no setup fee, 50 cents rate to Estonia and free incoming calls is better. Perhaps some Manx SIM might be better but check it for yourself .