make sure you do a reset on your phone first. even though i have h@h on my plan, when i first got the phone, i was too excited to call CS to add the plan. i was able to get on UMA with out issue. this is at home or any open wifi. i had a sim card error yesterday and after a reboot, my phone is behaving more or less the same as yours. i have wifi connection but, i am still on tmo network for voice. after pulling the battery for 1 minute per the faq, it is working like before again. so, pull your batt, leave it out for a while put it back in.
this is just my experience... btw, i think the outage is in CA only? i am on the east coast... i don't know of any UMA outages right now.
feel free to correct me.
