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Unified Communications Client API Error Messages

This content is no longer actively maintained. It is provided as is, for anyone who may still be using these technologies, with no warranties or claims of accuracy with regard to the most recent product version or service release.

The following table lists the error messages originated from Unified Communications Client API. The table is sorted by the message ID. The numerical value accompanying some of the message texts are the SIP message code. For the corresponding error codes of the HRESULT value, see Unified Communications Client API Error Codes.

Message ID Message Text

UCC_E_3RDPARTY_PHONE_SESSION_EXPECTED

3rd-party phone control session expected.

UCC_E_ALREADY_EXIST

The specified item already exists.

UCC_E_ANONYMOUS_USERS_NOT_ALLOWED

Anonymous users not allowed.

UCC_E_ANOTHER_MEDIA_SESSION_ACTIVE

Another media session is active.

UCC_E_ANOTHER_RECORDING_IN_PROGRESS

Another recording already in progress.

UCC_E_AUTHENTICATION_SERVER_UNAVAILABLE

Authenticating server cannot be reached.

UCC_E_BAD_RLMI_DOCUMENT

The RLMI document is invalid.

UCC_E_BASIC_AUTHENTICATION_SET_TLS

Must set transport to TLS if Basic Auth is allowed.

UCC_E_CANNOT_ADD_SPECIFIC_DEVICE_TO_SESSION

Cannot add a specific device to a session.

UCC_E_CODECS_MISMATCH

No matching codecs with peer.

UCC_E_CONF_UNEXPECTED_FAILURE

Unexpected failure occurred in the conference session.

UCC_E_CONFERENCE_EXISTS_ALREADY

Conference already exists. Possible duplicate conference ID.

UCC_E_CONFERENCE_NOT_EXIST

Conference does not exist.

UCC_E_CONSULTATION_CALL_IN_PROGRESS

Consultation call is already in progress.

UCC_E_DESTINATION_ADDRESS_LOCAL

The destination address belongs to the local machine.

UCC_E_DESTINATION_ADDRESS_MULTICAST

The destination address is a multicast address.

UCC_E_DIFFERENT_TRANSPORT_TO_SESSION

All participants in a session must have the same transport. Cannot add a participant with a different transport to a session.

UCC_E_DUPLICATE_3RDPARTY_PHONE_SESSION

3rd-party phone control session with the same call-ID exists.

UCC_E_DUPLICATE_BUDDY

Contact already exists.

UCC_E_DUPLICATE_GROUP

Group already exists.

UCC_E_DUPLICATE_REALM

Duplicate realm exists in an enabled endpoint.

UCC_E_DUPLICATE_WATCHER

Watcher already exists.

UCC_E_ENDPOINT_DUPLICATE_USER_URI_AND_SERVER

An endpoint with the same User URI and SIP Server is already enabled.

UCC_E_ENDPOINT_INVALID_SERVER_AUTHENTICATION_MODE

Invalid server authentication method in endpoint.

UCC_E_ENDPOINT_INVALID_SERVER_PROTOCOL

Invalid server protocol in endpoint.

UCC_E_ENDPOINT_INVALID_SERVER_ROLE

Invalid server role in endpoint.

UCC_E_ENDPOINT_INVALID_SESSION

Invalid session tag in endpoint.

UCC_E_ENDPOINT_INVALID_SESSION_PARTY

Invalid session party in endpoint.

UCC_E_ENDPOINT_INVALID_SESSION_TYPE

Invalid session type in endpoint.

UCC_E_ENDPOINT_MULTIPLE_REGISTRARS

Multiple registrar servers in endpoint.

UCC_E_ENDPOINT_NO_KEY

No endpoint key.

UCC_E_ENDPOINT_NO_NAME

No endpoint name.

UCC_E_ENDPOINT_NO_PROVISION

No provision tag in endpoint.

UCC_E_ENDPOINT_NO_SERVER

No server tag in endpoint.

UCC_E_ENDPOINT_NO_SERVER_ADDRESS

Server tag missing address in endpoint.

UCC_E_ENDPOINT_NO_SERVER_PROTOCOL

Server tag missing protocol in endpoint.

UCC_E_ENDPOINT_NO_USER

No user tag in endpoint.

UCC_E_ENDPOINT_NO_USER_URI

No user URI in endpoint.

UCC_E_ENDPOINT_SERVER_UNAUTHORIZED

Server address does not match an authorized domain in endpoint.

UCC_E_FEDERATED_USERS_NOT_ALLOWED

Federated users not allowed.

UCC_E_INCOMPATIBLE_STATE

Performed operation is not compatible with current object state.

UCC_E_INSUFFICIENT_SECURITY_LEVEL

Session was rejected due to insufficient security level.

UCC_E_INVALID_ACL_LIST

ACL list is invalid.

UCC_E_INVALID_ADDRESS_LOCAL

The local address is invalid. Check the endpoint.

UCC_E_INVALID_ADMISSION_TYPE

Invalid conference admission type.

UCC_E_INVALID_BUDDY_LIST

Contact list is invalid.

UCC_E_INVALID_ENCRYPTION_KEY

Invalid encryption key.

UCC_E_INVALID_ENDPOINT

Invalid endpoint.

UCC_E_INVALID_EXPIRY_TIME

Invalid conference expiry time.

UCC_E_INVALID_ID

The device ID is invalid.

UCC_E_INVALID_LISTEN_SOCKET

Specified address and port is invalid.

UCC_E_INVALID_OBJECT_STATE

Object state does not allow to perform this operation.

UCC_E_INVALID_OPERATION

Performed operation is neither valid nor allowed.

UCC_E_INVALID_PORTRANGE

Invalid port range.

UCC_E_INVALID_PREFERENCE_LIST

Preference list is invalid.

UCC_E_INVALID_PROXY_ADDRESS

The proxy address is not valid.

UCC_E_INVALID_REGISTRATION_STATE

Invalid registration state.

UCC_E_INVALID_SERVER_NAME

The specified server name is invalid.

UCC_E_INVALID_SERVER_VERSION

Server version received from the server is invalid.

UCC_E_INVALID_SESSION_STATE

Invalid session state.

UCC_E_INVALID_SESSION_TYPE

Invalid session type.

UCC_E_INVALID_SIP_DISPLAY_NAME

The SIP display name contains invalid characters.

UCC_E_INVALID_SIP_URL

The SIP URL is not valid.

UCC_E_INVALID_TEL_URL

The TEL URL is not valid.

UCC_E_IP_ADDRESS_CHANGED

Client IP address has changed. New IP address may not be immediately available.

UCC_E_LISTENING_SOCKET_NOT_EXIST

Listening socket does not exist.

UCC_E_LOCAL_PHONE_NEEDED

A local phone number is needed.

UCC_E_MALFORMED_HEADER_VALUE

Header value supplied was malformed.

UCC_E_MALFORMED_XML

Malformed XML.

UCC_E_MAX_CONFERENCES_EXCEEDED

Maximum number of conferences exceeded.

UCC_E_MAX_MEETING_SIZE_EXCEEDED

Maximum meeting size exceeded.

UCC_E_MAX_PENDING_OPERATIONS

Maximum number of pending operations reached.

UCC_E_MAX_REDIRECTS

Too many redirects.

UCC_E_MCU_TYPE_NOT_AVAILABLE

MCU type not available.

UCC_E_MEDIA_AEC

Failed to enable acoustic echo cancellation.

UCC_E_MEDIA_ALLOCATION_FAILED

Media port allocation failed.

UCC_E_MEDIA_AUDIO_DEVICE_NOT_AVAILABLE

Audio device is not available.

UCC_E_MEDIA_CONTROLLER_STATE

Operation not allowed in current media controller state.

UCC_E_MEDIA_DISABLED

Media is disabled.

UCC_E_MEDIA_ENABLED

Media is enabled.

UCC_E_MEDIA_NEED_TERMINAL

Can not find device.

UCC_E_MEDIA_NOT_SUPPORTED

Media not supported.

UCC_E_MEDIA_SESSION_IN_HOLD

Media session is in hold.

UCC_E_MEDIA_SESSION_NOT_EXIST

Media session does not exist.

UCC_E_MEDIA_TYPE_NOT_ALLOWED

Remote party does not support this media type.

UCC_E_MEDIA_VIDEO_DEVICE_NOT_AVAILABLE

Video device is not available.

UCC_E_NM_ALREADY_RUNNING

NetMeeting is already running.

UCC_E_NM_INITIALIZATION_FAIL

NetMeeting initialization failed.

UCC_E_NO_BUDDY

Contact does not exist.

UCC_E_NO_DEVICE

No preferred device.

UCC_E_NO_ENDPOINT

No valid endpoint for this operation.

UCC_E_NO_GROUP

Group does not exist.

UCC_E_NO_REALM

No realm is set.

UCC_E_NO_STREAM

No stream is active.

UCC_E_NO_TRANSPORT

Server can not be specified without a transport protocol.

UCC_E_NO_WATCHER

Watcher does not exist.

UCC_E_NOT_A_CONSULTATION_CALL

Operation is allowed only on consultation call which is not the case here.

UCC_E_NOT_A_PRINCIPAL_CALL

Operation is allowed only on a principal call which is not the case here.

UCC_E_NOT_ALLOWED

This action is not allowed.

UCC_E_NOT_EXIST

The required item does not exist.

UCC_E_NOT_PRESENCE_ENDPOINT

A presence endpoint must be used.

UCC_E_NOTIFICATION_DATA_TOO_LARGE

Conference participant notification data too large.

UCC_E_OPERATION_WITH_TOO_MANY_PARTICIPANTS

The operation failed because of too many participants in the session.

UCC_E_ORGANIZER_ROAMING_DATA_TOO_LARGE

Conference organizer roaming data too large.

UCC_E_OUT_OF_ORDER_NOTIFY

Received an out of order notify message from server.

UCC_E_PHONE_CONTROL_CHANNEL_NOT_EXISTS

The phone control channel does not exist.

UCC_E_PHONE_SERVER_INCAPABLE

The 3PCC server does not support basic operations.

UCC_E_PLATFORM_ALREADY_INITIALIZED

Client already initialized.

UCC_E_PLATFORM_ALREADY_SHUT_DOWN

Client already shut down.

UCC_E_PLATFORM_NOT_INITIALIZED

Client not initialized.

UCC_E_PLATFORM_NOT_SUPPORTED

This operation is not supported on this Windows platform.

UCC_E_POLICY_NOT_ALLOW

Current policy settings do not allow this action.

UCC_E_PORT_MANAGER_ALREADY_SET

Port manager already set.

UCC_E_PORT_MAPPING_FAILED

Port mapping failure returned from the port manager.

UCC_E_PORT_MAPPING_UNAVAILABLE

Port mapping can not be obtained from the port manager.

UCC_E_PRESENCE_ENABLED

Presence is enabled.

UCC_E_PRESENCE_NOT_ENABLED

Presence not enabled.

UCC_E_RECORDING_ALREADY_PAUSED

Recording already paused.

UCC_E_RECORDING_NOT_PAUSED

Recording not paused.

UCC_E_REDIRECT_PROCESSING_FAILED

Processing redirect failed.

UCC_E_REFER_NOT_ACCEPTED

Refer has not been accepted.

UCC_E_REFER_NOT_ALLOWED

Refer operation is not allowed in this session.

UCC_E_REFER_NOT_EXIST

Refer session does not exist or has finished.

UCC_E_REGISTRATION_DEACTIVATED

The user is being moved.

UCC_E_REGISTRATION_REJECTED

The user's account was disabled or deleted or the SIP URI changed.

UCC_E_REGISTRATION_UNREGISTERED

The user was logged out because the user logged in elsewhere.

UCC_E_REQUEST_CANCELLED

Request was cancelled.

UCC_E_RESOURCE_BLOCKED

A required resource is blocked.

UCC_E_RESOURCE_UNAVAILABLE

A required resource is not available.

UCC_E_ROAMING_ENABLED

Roaming is enabled.

UCC_E_ROAMING_FAILED

Roaming session failed.

UCC_E_ROAMING_OPERATION_INTERRUPTED

Roaming operation interrupted. It may still succeed or fail.

UCC_E_SDP_CONNECTION_ADDR

Media does not contain connection address.

UCC_E_SDP_FAILED_TO_BUILD

Failed to build SDP blob.

UCC_E_SDP_MULTICAST

Multicast is not supported.

UCC_E_SDP_NO_MEDIA

No media is available for the session.

UCC_E_SDP_NOT_PRESENT

SDP is not present in the SIP message.

UCC_E_SDP_PARSE_FAILED

Parsing SDP failed.

UCC_E_SDP_UPDATE_FAILED

SDP does not match the previous one.

UCC_E_SECURITY_LEVEL_ALREADY_SET

The security level has already been set for this Media type can and can not be changed.

UCC_E_SECURITY_LEVEL_NOT_COMPATIBLE

The local and remote security levels are not compatible.

UCC_E_SECURITY_LEVEL_NOT_DEFINED

The security level is not defined.

UCC_E_SECURITY_LEVEL_NOT_SUPPORTED_BY_PARTICIPANT

Participant could not support the requested security level.

UCC_E_SIP_ADDITIONAL_PARTY_IN_TWO_PARTY_SESSION

Adding additional parties to two party session failed.

UCC_E_SIP_AUTHENTICATION_FAILED

Authentication failed.

UCC_E_SIP_AUTHENTICATION_HEADER_SENT

Authorization header was sent in a previous request.

UCC_E_SIP_AUTHENTICATION_INCORRECT_REALM

Authentication failed because realm value in incoming message does not match realm value stored in endpoint.

UCC_E_SIP_AUTHENTICATION_TIME_SKEW

Authentication failure because of time skew between client and server.

UCC_E_SIP_AUTHENTICATION_TYPE_NOT_SUPPORTED

The authentication type requested is not supported.

UCC_E_SIP_CALL_CONNECTION_NOT_ESTABLISHED

Call connection has not been established.

UCC_E_SIP_CALL_DISCONNECTED

The call has been disconnected.

UCC_E_SIP_DNS_FAIL

DNS lookup fails.

UCC_E_SIP_HEADER_NOT_PRESENT

The SIP header is not present in the message.

UCC_E_SIP_HIGH_SECURITY_SET_TLS

Must set transport to TLS if high security mode is needed.

UCC_E_SIP_HOLD_OPERATION_PENDING

Currently a hold operation is pending.

UCC_E_SIP_INVALID_CERTIFICATE

Invalid certificate.

UCC_E_SIP_INVITE_TRANSACTION_PENDING

Currently processing another INVITE transaction.

UCC_E_SIP_INVITEE_PARTY_TIMEOUT

Invitee connection fails.

UCC_E_SIP_NEED_MORE_DATA

Need more data for parsing a whole SIP message.

UCC_E_SIP_OTHER_PARTY_JOIN_IN_PROGRESS

Join operation is in progress for another party.

UCC_E_SIP_PARSE_FAILED

Parsing SIP failed.

UCC_E_SIP_PARTY_ALREADY_IN_SESSION

Party already exists in session.

UCC_E_SIP_PEER_PARTICIPANT_IN_MULTIPARTY_SESSION

A peer participant cannot be added to a multiparty session.

UCC_E_SIP_REFER_OPERATION_PENDING

Currently a refer operation is pending.

UCC_E_SIP_REQUEST_DESTINATION_ADDR_NOT_PRESENT

The request destination address is not known.

UCC_E_SIP_SSL_NEGOTIATION_TIMEOUT

Timeout during SSL negotiation.

UCC_E_SIP_SSL_TUNNEL_FAILED

Cannot establish SSL tunnel to HTTP proxy.

UCC_E_SIP_STACK_SHUTDOWN

Sip stack is already shutdown.

UCC_E_SIP_STATUS_CLIENT_ADDRESS_INCOMPLETE

SIP status code: 484 Address Incomplete.

UCC_E_SIP_STATUS_CLIENT_AMBIGUOUS

SIP status code: 485 Ambiguous.

UCC_E_SIP_STATUS_CLIENT_BAD_EXTENSION

SIP status code: 420 Bad Extension.

UCC_E_SIP_STATUS_CLIENT_BAD_REQUEST

SIP status code: 400 Bad Request.

UCC_E_SIP_STATUS_CLIENT_BUSY_HERE

SIP status code: 486 Busy Here.

UCC_E_SIP_STATUS_CLIENT_CONFLICT

SIP status code: 409 Conflict.

UCC_E_SIP_STATUS_CLIENT_EXTENSION_REQUIRED

SIP status code: 421 Extension Required.

UCC_E_SIP_STATUS_CLIENT_FORBIDDEN

SIP status code: 403 Forbidden.

UCC_E_SIP_STATUS_CLIENT_GONE

SIP status code: 410 Gone.

UCC_E_SIP_STATUS_CLIENT_LENGTH_REQUIRED

SIP status code: 411 Length Required.

UCC_E_SIP_STATUS_CLIENT_LOOP_DETECTED

SIP status code: 482 Loop Detected.

UCC_E_SIP_STATUS_CLIENT_METHOD_NOT_ALLOWED

SIP status code: 405 Method Not Allowed.

UCC_E_SIP_STATUS_CLIENT_NOT_ACCEPTABLE

SIP status code: 406 Not Acceptable.

UCC_E_SIP_STATUS_CLIENT_NOT_FOUND

SIP status code: 404 Not Found.

UCC_E_SIP_STATUS_CLIENT_PAYMENT_REQUIRED

SIP status code: 402 Payment Required.

UCC_E_SIP_STATUS_CLIENT_PROXY_AUTHENTICATION_REQUIRED

SIP status code: 407 Proxy Authentication Required.

UCC_E_SIP_STATUS_CLIENT_REQUEST_ENTITY_TOO_LARGE

SIP status code: 413 Request Entity Too Large.

UCC_E_SIP_STATUS_CLIENT_REQUEST_TIMEOUT

SIP status code: 408 Request Timeout.

UCC_E_SIP_STATUS_CLIENT_REQUEST_URI_TOO_LARGE

SIP status code: 414 Request-URI Too Long.

UCC_E_SIP_STATUS_CLIENT_TEMPORARILY_NOT_AVAILABLE

SIP status code: 480 Temporarily Unavailable.

UCC_E_SIP_STATUS_CLIENT_TOO_MANY_HOPS

SIP status code: 483 Too Many Hops.

UCC_E_SIP_STATUS_CLIENT_TRANSACTION_DOES_NOT_EXIST

SIP status code: 481 Call LegTransaction Does Not Exist.

UCC_E_SIP_STATUS_CLIENT_UNAUTHORIZED

SIP status code: 401 Unauthorized.

UCC_E_SIP_STATUS_CLIENT_UNSUPPORTED_MEDIA_TYPE

SIP status code: 415 Unsupported Media Type.

UCC_E_SIP_STATUS_GLOBAL_BUSY_EVERYWHERE

SIP status code: 600 Busy Everywhere.

UCC_E_SIP_STATUS_GLOBAL_DECLINE

SIP status code: 603 Decline.

UCC_E_SIP_STATUS_GLOBAL_DECLINE_EVERYWHERE

SIP status code: 605 Decline Everywhere.

UCC_E_SIP_STATUS_GLOBAL_DOES_NOT_EXIST_ANYWHERE

SIP status code: 604 Does Not Exist Anywhere.

UCC_E_SIP_STATUS_GLOBAL_NOT_ACCEPTABLE

SIP status code: 606 Not Acceptable.

UCC_E_SIP_STATUS_MESSAGE_TOO_LARGE

SIP status code: 513 Message Too Large.

UCC_E_SIP_STATUS_NO_DATA

SIP status code: 609 No Data.

UCC_E_SIP_STATUS_NOT_ACCEPTABLE_HERE

SIP status code: 488 Not Acceptable Here.

UCC_E_SIP_STATUS_NOT_IN_BATCH

SIP status code: 607 Not In Batch.

UCC_E_SIP_STATUS_NOT_MEMBER

SIP status code: 610 Not Member.

UCC_E_SIP_STATUS_NOT_SUPPORTED

SIP status code: 608 Not Supported.

UCC_E_SIP_STATUS_PENDING

SIP status code: 612 Pending.

UCC_E_SIP_STATUS_REDIRECT_ALTERNATIVE_SERVICE

SIP status code: 380 Alternative Service.

UCC_E_SIP_STATUS_REDIRECT_MOVED_PERMANENTLY

SIP status code: 301 Moved Permanently.

UCC_E_SIP_STATUS_REDIRECT_MOVED_TEMPORARILY

SIP status code: 302 Moved Temporarily.

UCC_E_SIP_STATUS_REDIRECT_MULTIPLE_CHOICES

SIP status code: 300 Multiple Choices.

UCC_E_SIP_STATUS_REDIRECT_SEE_OTHER

SIP status code: 303 See Other.

UCC_E_SIP_STATUS_REDIRECT_USE_PROXY

SIP status code: 305 Use Proxy.

UCC_E_SIP_STATUS_REQUEST_PENDING

SIP status code: 491 Request Pending.

UCC_E_SIP_STATUS_REQUEST_TERMINATED

SIP status code: 487 Request Terminated.

UCC_E_SIP_STATUS_RESTART_SESSION

SIP status code: 611 Restart Session.

UCC_E_SIP_STATUS_SERVER_BAD_GATEWAY

SIP status code: 502 Bad Gateway.

UCC_E_SIP_STATUS_SERVER_INTERNAL_ERROR

SIP status code: 500 Server Internal Error.

UCC_E_SIP_STATUS_SERVER_NOT_IMPLEMENTED

SIP status code: 501 Not Implemented.

UCC_E_SIP_STATUS_SERVER_SERVER_TIMEOUT

SIP status code: 504 Server Time-out.

UCC_E_SIP_STATUS_SERVER_SERVICE_UNAVAILABLE

SIP status code: 503 Service Unavailable.

UCC_E_SIP_STATUS_SERVER_VERSION_NOT_SUPPORTED

SIP status code: 505 Version Not Supported.

UCC_E_SIP_TCP_FAIL

Fails to make a TCP connection.

UCC_E_SIP_TIMEOUT

SIP transaction timed out.

UCC_E_SIP_TLS_FAIL

Fails to make a TLS connection.

UCC_E_SIP_TLS_INCOMPATIBLE_ENCRYPTION

Incompatible TLS encryption.

UCC_E_SIP_TRANSPORT_NOT_SUPPORTED

The specified transport is not supported.

UCC_E_SIP_UDP_SIZE_EXCEEDED

The SIP message size is greater than the UDP message size allowed.

UCC_E_SIP_UNHOLD_OPERATION_PENDING

Currently an unhold operation is pending.

UCC_E_START_STREAM

Can not start stream.

UCC_E_STREAM_NOT_PRESENT

The stream to be stopped is not present.

UCC_E_STREAM_PRESENT

The stream to be started is already present.

UCC_E_T120_NM_CONNECTION_FAILED

T120 NetMeeting connection failed.

UCC_E_TERMINATED_BY_SERVER

The subscription was unexpectedly terminated by the server.

UCC_E_TOO_MANY_GROUPS

Max number of groups has been reached.

UCC_E_TOO_MANY_RETRIES

Too many attempts to resend a request.

UCC_E_TOO_SMALL_EXPIRES_VALUE

Expiration value received from the server is too small.

UCC_E_TRANSIENT_LOCAL_DISCONNECT

This operation failed because the network is unavailable at this time. Please try again later.

UCC_E_TRANSIENT_SERVER_DISCONNECT

This operation failed because the server is unreachable or busy at this time. Please try again later.

UCC_E_UDP_NOT_SUPPORTED

This feature is not supported when one of the server in endpoint has UDP transport.

UCC_E_UNKNOWN_MCU_TYPE

Unknown MCU type.

UCC_E_USER_NOT_ANSWERED

The user didn't answer the call.

UCC_S_CONFERENCE_JOIN_SUCCESS

Conference-join operation successful.

UCC_S_CONFERENCE_SUCCESS

Conference operation successful.

UCC_S_DEFLECT_SUCCESS

Remote disconnect operation successful.

UCC_S_FORWARD_DISCONNECT_SUCCESS

Disconnected due to forwarding operation.

UCC_S_OPERATION_IN_PROGRESS

The operation is in progress.

UCC_S_REMOTE_DISCONNECT_SUCCESS

Remote disconnect operation successful.

UCC_S_RETRIEVE_SUCCESS

Server version received from the server is invalid.

UCC_S_ROAMING_NOT_SUPPORTED

Server does not support this type of roaming.

UCC_S_SIP_STATUS_ACCEPTED

SIP status code: 202 Accepted.

UCC_S_SIP_STATUS_INFO_CALL_FORWARDING

SIP status code: 181 Call Is Being Forwarded.

UCC_S_SIP_STATUS_INFO_QUEUED

SIP status code: 182 Queued

UCC_S_SIP_STATUS_INFO_RINGING

SIP status code: 180 Ringing.

UCC_S_SIP_STATUS_INFO_TRYING

SIP status code: 100 Trying.

UCC_S_SIP_STATUS_REQUEST_TERMINATED

SIP status code: 487 Request Terminated.

UCC_S_SIP_STATUS_SESSION_PROGRESS

SIP status code: 183 Session Progress.

UCC_S_SIP_STATUS_SUCCESS

SIP status code: 200 OK.

UCC_S_TRANSFER_SUCCESS

Transfer operation successful.

UCC_S_UNSUBSCRIBED_BY_USER

This subscription has been terminated due to user action.

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