i just got a nokia lumia 720 and set it all up and yeah... its all good but when ever anyone tries to call me it always comes up as unknown even if i have there number saved in my contacts can anyone please help with that??
Are your contacts blocking their caller id from displaying their numbers? For example, AT&T allows me to show my number to: everyone, my contacts or no one. If I opt to show my number to no one, my contacts will still see "unknown number" if I call them, even if they have my number in their contact list.