Sounds like you've done a lot of troubleshooting. Although T-Mobile cannot guarantee full functionality of non T-Mobile phones, we should be able to get most of this working for you.
1. Unfortunately, there's limited support for UMA on non T-Mobile devices.
2. Your device does not support both 1700/2100 bands required for 3G, so I would recommend leaving it on GSM. T-Mobile is refarming the network to support 1900 band to include 3G data support; but for now you will likely get EDGE Internet speeds (depending on your coverage area).
3. I see you tried voicestream. Did you also try "epc.tmobile.com" -The specified item was not found. ?
Hope this helps!
thanks for your reply.
So I got the correct settings figgured out.
When a nokia phones retrieves / reads the settings from the USA t-mobile SIM card, (Control Panel --> Sett. wizard) it gets mostly all the settings right, besides the username, so instead of "nokia" the username has to be blank
Ok, then I guess I will have to live with just GSM, so 3G coverage doesnt work with just WCDMA 2100 or with 850 / 900?) I don't really want to use 3G for data, I'd just like to have more bars...
1. I read through the entire thread that you posted and this one here as well:
a) First of all my question is, do you on T-Mobiles site have to activate UMA on my line or is it automatically activated?
b) Are there certain settings to be set?
c) Since my phone is an EU version it comes with different factory certificates. One reason why UMA might not work is because I do not have any t-mobile certificates on my phone (under Control Panel-->Settings-->General-->Security-->Certificate Managment-->Authority Certificates)
I got this picture from the nokia forum, I do not have any of the following certificates.
Maybe if I install the following certificates it will work:
T-Mobile USA Inc Engineering and Operations CA
T-Mobile USA Inc Root CA
Where can I download them?
So I found 2 of the certificates here and installed them on my phone:
UMA is still not working. Which settings do I have to set in order to get it working?