united mobile sms issue with tmobile USA

[snaimon]

Originally Posted by herkdrvr

Why would T-Mobile block +423 numbers? I don't doubt your story, it just seems odd. Anyway, maybe the answer is to adios UM for another prepaid?

I was told back in Spring when I first investigated this that it was FRAUD. There are several other countries that are "blacklisted." NO big ones, however.

I really don't understand how UM can work. How can they offer FREE INBOUND to all those countries and still persuade their roaming partners to go along with the deal? If say T-Mobile Germany were getting 0 from allowing the SIMs to roam, why would T-Mo Germany allow them to roam? I conclude that T-Mo Germany is getting some portion of the termination fee. On the other hand I believe T-Mo Germany (and I would suspect the parent has passed some policies on down to the subsidiaries) would like to drive UM out of business. Therefore, they make it quite impossible for anyone in US to be contacted via their UM SIM.

BTW, as late as Sept 2006, there was no problem.

Stan