Assume that you have contacts in Lync 2013 who have at least one telephone number in their contact card. You sign in to Lync 2013, and then you open a contact card of one of the contacts. In this situation, a telephone number is displayed two times in the contact card.
Note The telephone number that is displayed in the contact card may be an E164 number or an extension.
Note The telephone number that is displayed in the contact card may be an E164 number or an extension.