iPhone 4S StraightTalk (T-Mobile SIM) APN Settings for MMS

[naranja]

I'm using an unlocked un-jailbroke Iphone 4S (latest 6.x ios) with a Straighttalk T-Mo sim. I've tried the APN settings from st's site and several permutations but no luck sending or receiving MMS. Can anybody who has had success share their settings? Thanks

 

[naranja]

I'm using an unlocked un-jailbroke Iphone 4S (latest 6.x ios) with a Straighttalk T-Mo sim. I've tried the APN settings from st's site and several permutations but no luck sending or receiving MMS. Can anybody who has had success share their settings? Thanks

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MMS now working. My settings for mms are:
APN: wap.tracfone
MMSC: http://mms.tracphone.com
MMS UA Prof URL: http://www.apple.com/mms/uaprof.rdf
All other values blank.