| Name | Description |
|---|---|
| AlreadyExists | |
| AnonymousNotAllowed | |
| AnotherOperationPending | |
| APIVersionNotSupported | |
| ApplicationNotFound | |
| AttendeeNotAllowed | |
| AutoAccepted | |
| Busy | |
| CallbackUriUnreachable | |
| CallTerminated | |
| Canceled | |
| ConnectedElsewhere | |
| ConversationNotFound | |
| Declined | |
| Demoted | |
| Denied | |
| DerivedConversation | |
| DeserializationFailure | |
| DestinationNotFound | |
| DialoutNotAllowed | |
| DoNotDisturb | |
| Ejected | |
| Ended | |
| EscalationFailed | |
| ExchangeTimeout | |
| Expired | |
| FederationRequired | |
| Forwarded | |
| InactiveApplicationExpired | |
| InsufficientBandwidth | |
| InvalidMediaDescription | |
| InviteesOnly | |
| IPv6NotSupported | |
| LimitExceeded | |
| LisServiceUnavailable | |
| MakeMeAvailableRequired | |
| MediaEncryptionMismatch | |
| MediaEncryptionNotSupported | |
| MediaEncryptionRequired | |
| MediaFailure | |
| MediaFallback | |
| MediaNegotiationFailure | |
| MediaNegotiationTimeOut | |
| MigrationInProgress | |
| Missed | |
| ModalityNotSupported | |
| NewContentSharer | |
| NoDelegatesConfigured | |
| NoLocationFound | |
| NormalizationFailed | |
| NotAcceptable | |
| NotAllowed | |
| NoTeamMembersConfigured | |
| OperationNotSupported | |
| ParameterValidationFailure | |
| PGetReplaced | |
| PhoneNumberConflict | |
| ProvisioningDataUnavailable | |
| PstnCallFailed | |
| Redirected | |
| Removed | |
| Replaced | |
| RepliedWithOtherModality | |
| SessionSwitched | |
| TemporarilyUnavailable | |
| ThreadIdAlreadyExists | |
| Timeout | |
| TooManyApplications | |
| TooManyContacts | |
| TooManyConversations | |
| TooManyGroups | |
| TooManyLobbyParticipants | |
| TooManyOnlineMeetings | |
| TooManyParticipants | |
| TransferDeclined | |
| Transferred | |
| TransferTargetDeclined | |
| Unavailable | |
| Unreachable | |
| UnsupportedMediaType | |
| UserAgentNotAllowed |