when i was using the 021 Voda number i managed to use iMessage that able to verifying my 021 number.
sometime i took the sim out & changed to 027 XT number but can't use iMessage, it try to verify the 021 voda number not the 027 number. Strange... I did turn off the iMessage before taking out the 021 sim.
Also tried Reset the Network Settings but not work still the same problem.
hope you guys can teach me if you manage to get iMessage work using different networks.
using 4s n ios 5.0.1.