1. snipergns's Avatar
    T-Mobile unlimited everything USA

    I can send video text to all my friends but except for my friends that have a non-unlocked iphone (at&t)

    Cellular Data:

    APN: wap.voicestream.com
    User: left blank
    Password: left blank


    APN wap.voicestream.com
    User: left blank
    Password: left blank
    MMSC: http://mms.msg.eng.t-mobile/wapenc
    MMS Proxy:left blank
    MMS Max Message Size: left blank
    MMS UA Prof URL: left blank


    All left blank

    Cellular data on
    data roaming on

    Why is it that I can send a video to t-mobile phones but not at&t iphones. Can anyone please help

    12-08-2010 11:19 AM
  2. dpscott's Avatar
    If it is leaving your phone then the issue is with AT&T / the phone you are sending to. Get some one to confirm the AT&T MMS settings with customer services. It's the network, not the phones
    12-08-2010 11:54 AM
  3. crystus's Avatar
    Unfortunately not all the carriers have opened their system to each other to implement cross carrier MMS.I can't remember specifically which carriers have opened up to each other. Though I thought that Tmobile and att were open to each other. Make sure that the video is 10 seconds or less as there is a size cap for att.
    12-08-2010 09:54 PM
  4. kellyp513's Avatar
    Try adding these settings:

    MMS Proxy:
    MMS Max Message Size: 1048576
    MMS UA Prof URL: https://www.apple.com/mms/uaprof.rdf#mn_p

    I'm also with T-mobile and was having problems until I added these settings. Hope it works for you as well.
    12-09-2010 10:35 AM
  5. snipergns's Avatar
    didn't work.
    12-09-2010 07:24 PM
  6. FrostedDarkness's Avatar
    No idea. But maybe
    1.) Contact them.
    2.) Apply a fix above.
    02-22-2011 04:45 PM