Unfortunately, Apple has not included the number formats for every country with the iPhone firmware. In the 1.1.x firmwares we had a patch for AppSupport which took care of this issue. In 2.x the older patch no longer works. Frank8 has created a fix for the 2.1 firmware which works for these countries. Big thanks to him for his work.
For your convenience this tutorial is available in video format also.
Press to launch Cydia from your Springboard.
Press to select the Sections tab from the bottom of the screen.
Press to choose the Localization section from the list.
Press to select CallerID Fix Collection from the list of packages.
Press the Install button at the top right hand corner of the screen.
Press the Confirm button at the top right hand corner of the screen to begin installation.
Once installation has completed successfully click the large Return to Cydia button.
Press the Home button to return to your Springboard.
Hold the Sleep/Wake button for 3 seconds to bring up the Power slider. Move the slider to the right to power off your iPhone. Now press the Sleep/Wake button again to reboot your iPhone.
Once your iPhone has rebooted the /System/Library/PrivateFrameworks/AppSupport.framework/PhoneNumberTemplates.plist will modified to include support for the extra countries!
THANKS: Thanks to Frank8 and iSpazio for their work on this. To request your country included use the Package's More Info button in Cydia.