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The telephone number isn't visible in the Lync contact card
Article ID: 2658120 - View products that this article applies to.
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An administrator changes a user’s telephone number through the Microsoft Office 365 portal or in the on-premises Active Directory Domain Services (AD DS). After 24 hours, the change isn't visible in the Microsoft Lync contact card for the user.
To resolve this issue, change the telephone number in the Office 365 portal or the on-premises AD DS so that it follows the E.164 format.
If you're using Directory Synchronization together with an on-premises AD DS, populate the telephoneNumber attribute that uses the E.164 formatted telephone number, and let the attribute sync to Microsoft Office 365.
Note It can take up to 24 hours for changes that you make in the portal or on-premises to be visible in a user’s Lync contact card.
This occurs because the telephone number wasn't entered by using the E.164 format. Numbers in the E.164 format typically start with a plus sign (+) prefix that's followed by a maximum of fifteen digits. For example, the E.164 format for the United States telephone number 555-0100 that has an area code of 425 is +14255550100.
If a telephone number isn't entered by using E.164 format in the Office 365 portal or in the on-premises AD DS, it won't replicate to the Lync address book.
Still need help? Go to the Office 365 Community
Article ID: 2658120 - Last Review: May 15, 2013 - Revision: 6.0