Cingular Maritime and United Mobile?

[AndreA]

Originally Posted by Przemolog

However, there were reports that UM roams on TIM GSM-on-Ships service at the same rate as on Italian land. This doesn't have to be true for other services of that type, however. I suppose that since there are no speficified rates for using UM with
GSM-on-Ships roamings, then either they are charged at "land rates" of the service providers or the roaming isn't available at all. Of course, there also may be an "undefined tariff status" as in case of UM roaming in Japan.

Well, I had the usual tariff plan (free incoming calls ) with my UM simcard on SuperFast Ferries too (ISIMINN, Iceland maritime network). Now I'm curious to know their billing on other gsm maritime networks