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DRNewcomb · 13-09-2006, 11:32

I've tested the Riing (UM) SIM in Japan on a couple of occasions. As I recall, it worked on Vodafone but rates seemd to be undefined. Incoming calls on one occasion were 59cts/min the next time they were over 1 Euro/min. I asked UM about this and they really didn't support roaming in Japan. For this reason I don't really recomend UM in Japan. I have no experience with any other prepaid SIMs in Japan. I've been looking at alternatives to UM but have not tried anything yet.

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DRNewcomb (Offline) Senior Member Prepaid Professionist Posts: 1,465 Join Date: 27 Feb 2004 Location: Mississippi, USA Country:	13-09-2006, 11:32 I've tested the Riing (UM) SIM in Japan on a couple of occasions. As I recall, it worked on Vodafone but rates seemd to be undefined. Incoming calls on one occasion were 59cts/min the next time they were over 1 Euro/min. I asked UM about this and they really didn't support roaming in Japan. For this reason I don't really recomend UM in Japan. I have no experience with any other prepaid SIMs in Japan. I've been looking at alternatives to UM but have not tried anything yet.