SPBuiltInFieldId.Business2Number Field
Identifies a field that contains a second corporate telephone number that is associated with a person who is referenced in a specified SharePoint Foundation contact object.
Namespace: Microsoft.SharePoint
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online
Syntax
'Declaration
Public Shared ReadOnly Business2Number As Guid
'Usage
Dim value As Guid
value = SPBuiltInFieldId.Business2Number
public static readonly Guid Business2Number