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Thread: T-Mobile US wifi calling with OS 7.1?

  1. #1
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    T-Mobile US wifi calling with OS 7.1?

    I just got the 9790 and updated it to 7.1.336 on T-mobile in US and do not have the wifi calling option. Is there some way to get this working? Does anyone else have it up and running?

  2. #2
    Join Date
    Mar 2002
    Location
    Berkeley and Miami
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    4,679
    Device(s)
    LG-G4, wife S7
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    T-M
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    Do you have a TM branded phone?
    GoogleVoice (domestic call forwarding and cheap intl. calls) Use GV to give us a "home" number in a 2nd location
    6 T-Mobile lines - Unlimited talk and text, data. 2G fast data on each line . $120/mo. + taxes. We have had no landline in more than 10 years.

  3. #3
    Join Date
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    It is not a t-mobile branded phone. But I took a risk and tried this - it worked!!

    UMA for Tmobile

    although i didn't have to since the certificats came with the service books, but just in case (download these certificats on the phone directly)
    http://www.twoeighteighty.com/uma_files/trustcert.der
    http://www.twoeighteighty.com/uma_fi...obile_root.der

    unincript the help screen using
    Zibri's Blog: Hidden things are usually the best
    http://www.zibri.org/2009/08/hidden-...ally-best.html


    1. At the EScreen select <Mobile Network Engineering Screens>
    2.. Select <Utilities>
    3. Select <Session Manager>
    4. Press the BlackBerry menu button and select <UMA Options>
    5. Press the BlackBerry menu button and select <New>
    6. Enter the following: Display Name: T-Mobile Operator Name: T-Mobile UMA Protocol version: 1.0.3 (I used 1.0.4 i think)
    7. Unselect <use default UNCS> and enter punc.t-mobileuncs.com use Port: 14001
    8.Unselect <use default SEGW> and enter psgw.t-mobilesgws.com
    9. Select the SEGW certificate named T-Mobile USA, ing. Engineering and Operations CA (OR SIMILAR BROWSE ALL TILL YOU FIND THE RIGHT ONE)

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