....can anyone tell me the difference between this and the long-existing UMA (unauthorized mobile access)? i've been using t-mobile's UMA system, initially called hotspot@home for over two years, making free calls at home or at any open wi-fi spot (or spots where i have the passcode) and abroad. READ: with the femtocell/ UMA system if you're making wi-fi calls the system, at least T-mobile's system, does not care where you're in the world and treats you as if you're in the US.
this is a very well known "secret":
1. free calls, in the country or abroad,
2. seamless transition during the call from wi-fi to GSM, all calls initiated in the wi-fi network, even if they continue on the GSM network are free (this does not work overseas-- the phone, in the US, sends a ping to the GSM tower while you're fading from the wi-fi network and negotiates the transfer of your call from wi-fi to GSM without you noticing it. overseas the phone still sends the request, but because there are roaming issues it cannot complete it quickly so your call drops if you leave the wi-fi network or lose connection. which is a great thing because this way you assure you don't pay international roaming charges.
3. no deadspots at home, etc...
at the initial launch this was a $9.95 a month a add-on, $19.95 for family plans. that is when i signed up. now it is $10 higher for each i believe.
simple wi-fi capability is not enough to work on this system. the phone must have the required hardware. that is the ONLY reason i did not buy an iPhone and moved to AT&T. i pay for a 600 minutes (used to be 1500 before UMA) per month plan plus $9.95 a month and get unlimited free calls at any wi-fi spot, here or abroad. you can't beat that with a stick...
t-mobile was the leader of this technology in the US. when it was launched the reaction from other companies was very hostile. but, for some reason, t-mobile did not really advertise this much (probably the realized, even though this is where technology is headed, does not make good business sense initially and will decrease revenues if widespread). sprint and verizon has knock-offs of the UMA system but they are not GSM operators, so it does not make much sense with their system. plus, with none-GSM operators, it doesn't make sense internationally.
now AT&T is finally offering, it seems to me, what has been available to us for over two years. or, if this is not UMA, i would appreciate if someone can tell me what the difference is...
i think what made t-mobile's UMA different (and hated by other carriers first and itself eventually) is the pricing: an add-on of $9.95 (for new signers $19.95) for unlimited calling in or outside of the country, as long as you're connected at a wi-fi hotspot.
for the person who said this would not be available in the UK-- actually orange has been offering UMA for a while in the UK.
finally, i am not a tech person. i just like the efficiency of UMA (and the cheapness). if you guys think what AT&T is offering is not UMA, i would like to know. the industry information on UMA is at:
http://umatoday.com/index.php
sorry for the rant but i wanted an iPhone ever since it came out but didn't get one only because i wanted to keep my T-mobile UMA system. now AT&T is finally about to offer its UMA system, if i am correct-- so perhaps we can even use the iPhone, if it is updated for the AT&T system, with the T-mobile system..