Please Help! Need a third party app

[breadiicheese]

I'm experiencing a problem with country codes. My iphone has been jailbroken and unlocked. I'm in Singapore and when someone sms me, the number is reflected with the country code and when he calls, it is displayed with no country codes. However, if I store the number with no country code under a specific name, the name does not appear in smses when the number is reflected with the country code. How do I retify this? any third party app for this?

[Hawk]

Dude, 3 posts is OVERKILL. do a little research instead of spamming the forum.