The Enterprise Voice, Video, and Messaging Endpoint must be configured to produce session (call detail) records containing the outcome of the connection.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-259959	SRG-NET-000078	SRG-NET-000078-VVEP-00025	SV-259959r948844_rule	2024-08-02	1

Description
Session records are commonly produced by session management and border elements. Many Enterprise Voice, Video, and Messaging Endpoints are not capable of providing session records and instead rely on session management and border elements. Enterprise Voice, Video, and Messaging Endpoints capable of producing session records provide supplemental confirmation of monitored events. Enterprise Voice, Video, and Messaging Endpoints that communicate beyond these defined environments must generate session records. Session record content that may be necessary to satisfy this requirement includes, for example, type of connection, connection origination, time stamps, outcome, user identities, and user identifiers. Additionally, an adversary must not be able to modify or delete session records. Detailed records are typically produced by the session manager but can be augmented by nontelephone endpoint records.

Description

Session records are commonly produced by session management and border elements. Many Enterprise Voice, Video, and Messaging Endpoints are not capable of providing session records and instead rely on session management and border elements. Enterprise Voice, Video, and Messaging Endpoints capable of producing session records provide supplemental confirmation of monitored events. Enterprise Voice, Video, and Messaging Endpoints that communicate beyond these defined environments must generate session records. Session record content that may be necessary to satisfy this requirement includes, for example, type of connection, connection origination, time stamps, outcome, user identities, and user identifiers. Additionally, an adversary must not be able to modify or delete session records. Detailed records are typically produced by the session manager but can be augmented by nontelephone endpoint records.

ℹ️ Check
Verify the Enterprise Voice, Video, and Messaging Endpoint produces session records containing the outcome of the connection. Outcomes of the connection would include call completed, conference completed, destination busy, network busy, etc. If the Enterprise Voice, Video, and Messaging Endpoint does not produce session records containing the outcome of the connection, this is a finding.

✔️ Fix
Configure the Enterprise Voice, Video, and Messaging Endpoint to produce session records containing the outcome of the connection.