SINCallDirection
Objective-C
enum SINCallDirection : NSInteger {}Swift
enum SINCallDirection : Int, @unchecked SendableDescribes direction of the call
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                  Undocumented DeclarationObjective-C SINCallDirectionIncoming = 0Swift case incoming = 0
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                  Undocumented DeclarationObjective-C SINCallDirectionOutgoingSwift case outgoing = 1
 SINCallDirection Enumeration Reference
        SINCallDirection Enumeration Reference