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Attributes for AD Users : telephoneNumber


The AD attribute telephoneNumbercan contain the primary telephone number where the user is available at work.


telephoneNumber


LDAP name telephoneNumber
Data type String (max 64)
Multivalue (Array) No
System Flags

0x10

Search Flags 0x0
In Global Catalog? Yes
Attribute ID 2.5.4.20
AD DB attribute name Telephone-Number
ADSI datatype 3 - String(Unicode)
LDAP syntax 1.3.6.1.4.1.1466.115.121.1.15 - Directory String
Used in ... > W2K
Schema Info Microsoft - MSDN

This field isn't used directly from the Active Directory system, it is a pure info attribute without technical meaning. However, the telephoneNumber attribute is could be used used if some unified messaging system is installed which is based on Active Directory data.


Please note that there is another multivalue attribute named otherTelephoneNumber, which can hold a list of additional telephone numbers for the user.


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