The organization must document the Voice Video call control policy (dial plan) for controlling the flow of information within the system.

From Voice Video Policy Security Technical Implementation Guide

Part of SRG-POL-400002

Associated with: CCI-001548

VVSP-01-000016_rule The organization must document the Voice Video call control policy (dial plan) for controlling the flow of information within the system.

Vulnerability discussion

Information flow control regulates where information is allowed to travel within a network and between interconnected networks. The flow of all network traffic must be monitored and controlled so it does not introduce any unacceptable risk to the network infrastructure or data.For Voice Video systems, session flow of information is controlled by dial plans that coordinate connections between endpoints. Dial plans can also reduce connection costs in some cases, relying on routes across the DoDIN rather than over commercial services. Voice Video session managers can route connections to known commercial services and DoD providers. Using DoDIN network paths reduces the risk of an adversary to intercept calls. However, dial plans can be mimicked and therefore are only part of a defense-in-depth approach.

Check content

Review the Voice Video call control policy (dial plan) for controlling the flow of information within the system. Within the DoD, highest priority must be given to routing calls via DoD networks first, service providers second, and other higher-cost WAN connections last. Least cost routing must be implemented within the Voice Video system. Additionally, each site must have appropriate connection approval to be included in the DISN Voice Services dial plan. If the Voice Video call control policy for controlling the flow of information within the system is not fully documented, this is a finding.

Fix text

Document the Voice Video call control policy (dial plan) for controlling the flow of information within the system as part of the Voice Video access control plan. Highest priority must be given to routing calls via DoD networks first, service providers second, and other higher-cost WAN connections last. Least-cost routing must be implemented.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.

Powered by sagemincer