ConferenceSessionDetails table in Skype for Business Server 2015

Each record represents one conference session, which could be either the session with Focus or the session with a specific conferencing server.

Column Data Type Key/Index Details
SessionIdTime
Datetime
Primary, Foreign
Time of session request; used in conjunction with SessionIdSeq to uniquely identify a conference session. See the Dialogs table in Skype for Business Server 2015 for more information.
SessionIdSeq
int
Primary, Foreign
ID number to identify the session. Used in conjunction with SessionIdTime to uniquely identify a conference session. See the Dialogs table in Skype for Business Server 2015 for more information. *
ConferenceUriId
int
Foreign
Focus conference URI related to this session. See the ConferenceUris table in Skype for Business Server 2015 for more information. This URI is a Focus-based conference URI.
ConfInstance
uniqueIdentifier
Identifier that differentiates between instances of recurring conferences. Each recurring conference instance has the same ConferenceURI but a different ConfInstance value.
This field was introduced in Microsoft Lync Server 2013.
McuConferenceUriId
int
Foreign
Conferencing server conference URI related to this session. See the ConferenceUris table in Skype for Business Server 2015 for more information. This URI is the conferencing server-based conference URI. For Focus conference sessions, this column will be null.
UserId
int
Foreign
ID of one user in the conference session. See the Users table for more information.
UserEndpointId
uniqueidentifier
A GUID to identify the instance of endpoint. For example, if one user logs on to different machines with the same account, then each machine will have a different endpoint ID.
OnBehalfOfId
int
Foreign
Indicates the ID of the user of who the caller is on behalf. See the Users table for more information.
ReferredById
int
Foreign
ID of the user by who the call is referred. See the Users table for more information.
UserClientVersionId
int
Foreign
Client version used by the conference user. See the ClientVersions table in Skype for Business Server 2015 for more information.
ConfClientVersionId
int
Foreign
Client version used by the conference server. See the ClientVersions table in Skype for Business Server 2015 for more information.
ReplaceDialogIdTime
datetime
Foreign
ID number to identify the dialog which was replaced by current session. See the Dialogs table in Skype for Business Server 2015 for more information.
ReplaceDialogIdSeq
int
Foreign
ID number to identify the session. Used in conjunction with ReplacesDialogIdTime to uniquely identify a session that is replaced by this session. See the Dialogs table in Skype for Business Server 2015 for more information.
IsStartedByConfServer
bit
Indicates if the session started by the conferencing Server.
IsEndedByConfServer
bit
Indicates if the session ended by the conferencing server.
IsUserInternal
bit
Whether user is logged on from internal or not.
ResponseCode
int
Session Initiation Protocol (SIP) response code to the session invitation. This field is typically populated by data generated from the initial INVITE message in the session. If there is no INVITE message then the field is populated with the date and time of the first relevant SIP message (BYE, CANCEL, MESSAGE, or INFO).
DiagnosticId
int
Diagnostic ID captured from SIP header.
ServerId
int
Foreign
ID of the front-end server used for this session. See the Servers table for more information.
PoolId
int
Foreign
ID of the pool in which the session was captured. See the Pools table for more information.
MediationServerId
int
Foreign
The Mediation Server the call is using. See the MediationServers table for more information.
GatewayId
int
Foreign
The gateway the call is using. See the Gateways table in Skype for Business Server 2015 for more information.
EdgeServerId
int
Foreign
The Edge Server the call is using. See the EdgeServers table in Skype for Business Server 2015 for more information.
ContentTypeId
int
Foreign
Content type used in the session. See the ContentTypes table in Skype for Business Server 2015 for more information.
InviteTime
datetime
The time of the first INVITE request. This field is typically populated by data generated from the initial INVITE message in the session. If there is no INVITE message then the field is populated with the date and time of the first relevant SIP message (BYE, CANCEL, MESSAGE, or INFO).
ResponseTime
datetime
Time of the first SIP RESPONSE. This field is typically populated by data generated from the initial INVITE message in the session. If there is no INVITE message then the field is populated with the date and time of the first relevant SIP message (BYE, CANCEL, MESSAGE, or INFO).
SessionEndTime
datetime
The time when the session is ended.
UriTypeId
tinyint
Foreign
Contains the MCU URI type value from the UriTypes table. This field is used for improving query performance.
This field was introduced in Microsoft Lync Server 2013.
UserFlag
smallint
A bit set that indicates the user attributes. The following attribute definitions are listed:
Integrated with desktop phone - 1
CallFlag
smallint
A bit set that indicates the call attributes. The following attribute definitions are listed:
Retried Session - 1
LastModifiedTime
Datetime
For internal use by the Monitoring service.
This field was introduced in Skype for Business Server 2015.

* For most sessions, SessionIdSeq will have the value of 1. If multiple sessions start at exactly the same time, the SessionIdSeq for one will be 1, for another will be 2, and so on.