(T-Mobile) iMessage Caller ID Problem

here of basics situation:
iphone 4, ios 5.0.1 (untethered jailbroken), t-mobile (gevey unlocked)
imessage works (sam activated)

problem? caller id option doesn't show up. , know why; along lines of country codes not recognized or whatever (when activated through sam)

want know: there plist file can edit change caller id email phone number? or more complicated that?

or, if have solution (to caller id working tmobile iphone), tell!

thanks!

 

you need activate mms on caller id!

 

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