Buying a Google Nexus One Unlocked is a Terrible Experience
charleshudson.net
charleshudson.net
Personally, I think this problem falls completely outside the scope of Google. He wants people calling a non-Google Voice number to get to his Google Voice voicemail. This is a feature that has to be provided by the network, because it needs to work when your phone is off. T-Mobile does not provide this feature unless you pay them money. He doesn't want to pay them money, so he doesn't get the feature.
It's an annoying arbitrary limitation (because T-Mobile's network supports this just fine; call my "real" T-Mobile number and you get my Google Voice voicemail), but it's not Google's fault. It's just how cell phone service works in the US; it's based around subsidized devices or really cheap featureless devices. Nobody has a featureful unsubsidized smartphone, so it's not a case that the providers handle. They disable features on the cheap subsidized phones because they want to upsell you to a subsidized phone, guaranteeing revenue for 2 years.
Anyway, if the author is setting up a new number for this phone, he can avoid the whole problem by only telling the new number to Google. Everyone else can call his Google Voice number directly, and then it doesn't matter where his real voicemail forwards to. (I stopped telling everyone my real number about 6 months ago, and now it gets no calls.)
Sadly, short of moving to another country, I don't think there's any way the author can get what he wants. (AT&T doesn't even allow the possibility of data use unless you have a multi-year contract.)
Edit: Since the author makes the inevitable iPhone comparison, it's worth pointing out that "Buying an unlocked iPhone is an impossible experience."
The original post is about one really specific feature, completely under T-Mobile's control (and restriction in this case), and has nothing to do with Google or the Nexus or Google Voice, or anything else mentioned.
There isn't a telephone "star" (*) code for setting this?
It sucks, but T-Mobile not supporting call forwarding on FlexPlay plans isn't exactly a secret, he could have easily found this out before buying the phone (or before contacting support):
I fail to see how this is the fault of his phone being unlocked, Google, Android or even T-Mobile. No phone in the world would have done what he wanted with the plan he got. It's like saying buying a Google Nexus One unlocked is a terrible experience because there's no free weekend calling.