To call out, we can either using the format +6 012-1234567 begin_of_the_skype_highlighting +6 012-1234567 end_of_the_skype_highlighting or 012-1234567, both number is the same, and normally the phone will recognize +6 012-1234567 == 012-1234567.
However in our case, the phone is recognize +6 012-1234567 and 012-1234567 as a difference number.
So we need to keyin both number under same contact name (let say ABC) to make the phone recognize
+6 012-1234567 = ABC = 012-1234567.
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In my case, the caller ID for SMS is in the format of +60121234567
and the caller ID for incoming call is in the format of 0121234567
therefore I use format +60121234567 to sent out message
and use format 0121234567 to make call....
Hope you can understand...

okay i understand that now. but my problem is my contact reply with 6017, not +6017. i cannot reply or call to 6017