An IP-based VTC system implementing a single CODEC that supports conferences on multiple networks with different classification levels (i.e., unclassified, SECRET, TOP SECRET, TS-SCI) must support Periods Processing by connecting the CODEC to one network at a time, matching the classification level of the session to the classification level of the network.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-259893 | SRG-VOIP-000130 | SV-259893r948737_rule | CCI-002212 | high |
| Description | ||||
| Connecting to networks of different classifications simultaneously incurs the risk of data from a higher classification being released to a network of a lower classification, referred to as a "spill". It is imperative that networks of differing classification levels or with differing handling caveats not be interconnected at any time. Separation in a multinetwork VTC system is maintained by the use of an A/B, A/B/C, or A/B/C/D switch that meets requirements for channel isolation or by manual connection of the CODEC to one network at a time. | ||||
| STIG | Date | |||
| Enterprise Voice, Video, and Messaging Policy Security Requirements Guide | 2025-05-29 | |||
Details
Check Text (C-259893r948737_chk)
Review the VTC system architecture to verify that an approved A/B, A/B/C, or A/B/C/D switch is present and properly cabled.
Alternately, validate that the VTC CODEC is manually connected to one network at a time through the use of a single patch cord.
If neither is in place, this is a finding.
Fix Text (F-63531r946599_fix)
Obtain and install an approved A/B, A/B/C, or A/B/C/D switch.
Alternately, manually connect the VTC CODEC to one network at a time through the use of a single patch cord.