- u -

• UDPMode : Swift::JingleS5BTransportPayload
• Unavailable : Swift::Presence
• UndefinedCondition : Swift::StreamError , Swift::ErrorPayload
• UnexpectedElementError : Swift::ClientError
• UnexpectedRequest : Swift::ErrorPayload
• UnknownAction : Swift::JinglePayload
• UnknownCertificateError : Swift::ClientError
• UnknownCreator : Swift::JingleContentPayload
• UnknownError : Swift::ClientError
• UnknownType : Swift::JinglePayload::Reason , Swift::WhiteboardPayload
• Unsubscribe : Swift::Presence
• Unsubscribed : Swift::Presence
• UnsupportedApplications : Swift::JinglePayload::Reason
• UnsupportedEncoding : Swift::StreamError
• UnsupportedStanzaType : Swift::StreamError
• UnsupportedTransports : Swift::JinglePayload::Reason
• UnsupportedVersion : Swift::StreamError