SessionDetails table

Each record represents one peer-to-peer session, which could be a VoIP-VoIP phone call, two-party IM session, or other type of session. You can perform a table join with the Media table to find the details of each media involved in this session.

Note that the IsUser1IntegratedWithDeskPhone and the IsUser2IntegratedWithDeskPhone fields have been dropped from the SessionDetails table used in Skype for Business Server 2015.

Column Data Type Key/Index Details
SessionIdTime
datetime
Primary, Foreign
Time of session request. Used in conjunction with SessionIdSeq to uniquely identify a 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 session.* See the Dialogs table in Skype for Business Server 2015 for more information.
CorrelationId
uniqueidentifier
A GUID to correlate multiple sessions.
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.
User1Id
int
Foreign
ID of one user in the session. See the Users table for more information.
User2Id
int
Foreign
ID of the other user in the session. See the Users table for more information.
User1EndpointId
uniqueIdentifier
GUID that identifies the endpoint used by the first user in the session.
This field was introduced in Microsoft Lync Server 2013.
User2EndpointId
uniqueIdentifier
GUID that identifies the endpoint used by the second user in the session.
This field was introduced in Microsoft Lync Server 2013.
TargetUserId
int
Foreign
The original To user URI in the SIP request. see the Users table for more information.
SessionStartedById
int
Foreign
ID of the user who started the session. See the Users table for more information.
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.
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.
ContentTypeID
int
Foreign
Content type used in the session. See the ContentTypes table in Skype for Business Server 2015 for more information.
User1ClientVerId
int
Foreign
Client version used by User1. See the ClientVersions table in Skype for Business Server 2015 for more information.
User2ClientVerId
int
Foreign
Client version used by User2. See the ClientVersions table in Skype for Business Server 2015 for more information.
User1EdgeServerid
int
Foreign
Edge Server used by User1. See the EdgeServers table in Skype for Business Server 2015 for more information.
User2EdgeServerid
int
Foreign
Edge Server used by User2. See the EdgeServers table in Skype for Business Server 2015 for more information.
IsUser1Internal
bit
Whether User1 is logged on from internal or not.
IsUser2Internal
bit
Whether User2 is logged on from internal or not.
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). 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
The time of the response to the first INVITE message. 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).
ResponseCode
int
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.
CallPriority
int
Foreign
Call priority. See the CallPriorities table in Skype for Business Server 2015 for more information.
User1MessageCount
int
Number of messages sent by User1 during the session.
User2MessageCount
int
Number of messages sent by User2 during the session.
SessionEndTime
datetime
Time at the end of the session.
MediaTypes
int
A bit set that indicates the media type of this session. Listed are the definitions of the types:
1- IM
2- FILE_TRANSFER
4- REMOTE_ASSISTANCE
8- APP_SHARING
16- AUDIO
32- VIDEO
64- APP_INVITE
User1Flag
smallint
A bit set that indicates the User1 attributes. The following attribute definitions are listed:
0x01 - Integrated with desktop phone
User2Flag
smallint
A bit set that indicates the User2 attributes. The following attribute definitions are listed:
0x01 - Integrated with desktop phone
CallFlag
smallint
A bit set that indicates the call attributes. The following attribute definitions are listed:
0x01 - Retried Session
0x02 - A call made by agent on behalf of a response group
Processed
bit
For internal use by the Monitoring service.
This field was introduced in Microsoft Lync Server 2013.
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.