What is the correct MMS setting for iPhone 3.1?

[kidwithdimples]

On my 3GS 4.0.1 I have the following settings:

Celluar Data
APN: internet2.voicestream.com
UserName: <blank>
Password: <blank>

MMS
APN: wap.voicestream.com
UserName: <blank>
Password: <blank>
MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
MMS Proxy: 216.155.165.50:8080
MMS Max Message Size: 1048576
MMS UA Prof URL: http://www.apple.com/mms/uaprof.rdf

And I get every MMS perfectly fine. My sister has 3.1 and has the same settings but it says the picture is too big every time she receives a MMS.

 

[phreebsd]

why dont u install the t-mobile apn fix from cydia?

 

[kidwithdimples]

why dont u install the t-mobile apn fix from cydia?

It says it's for iOS4

but her iphone is on 3.1

is that fine ?