I have Brightspot, which is a pre-paid MVNO on T-Mobile, and it has been my experience that I cannot use my Google Voice number for voicemail like I could with a post-paid account, and I am experiencing that a lot of the short-code messaging services can't reach me, either. I haven't tried sending an SMS to a short-code service, but my suspicion is "no" on that, too.
Also, and this may be T-Mobile wide, I am experiencing that they are routing all voice traffic over the data line, which means poor coverage now results in ch-op-py dr-op-ou-t speech just like a bad SIP line would. I tried to make a call last weekend and the other end sounded just like a modem it was so bad.
Also, and this may be T-Mobile wide, I am experiencing that they are routing all voice traffic over the data line, which means poor coverage now results in ch-op-py dr-op-ou-t speech just like a bad SIP line would. I tried to make a call last weekend and the other end sounded just like a modem it was so bad.
Just caveat emptor.