The site’s private Multi-Line Telephone System’s (MLTS) (VoIP or traditional) support/implementation for Fire and Emergency Services (F&ES) (life safety, security, fire, police, medical, etc.) communications is deficient in that such emergency calls are not routed as a priority call in a non-blocking manner.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-21512	VVT 2005 (GENERAL)	SV-23721r1_rule		Medium

Description
When calling the designated F&ES telephone number, the call must go through no matter what the state of other calls in the system. As such, emergency calls must be treated as a priority call by the system.

STIG	Date
VOICE and VIDEO over INTERNET PROTOCOL (VVoIP) POLICY SECURITY TECHNICAL IMPLEMENTATION GUIDE	2010-08-17

Details

Check Text ( C-25753r1_chk )
Interview the IAO to validate compliance with the following requirement: Ensure the local DoD Multi-Line Telecommunications System (MLTS), VoIP or traditional, routes calls to the designated local emergency services number at the public and/or private emergency services answering point (PSAP) as a priority call in a non-blocking manner. NOTE: In the event the F&ES calls are routed to a public entity outside the MLTS, the call should also be routed to an internal emergency number in parallel with the external call. Both calls should have the same priority. This is so that the site can be aware of the emergency and assist the F&ES responders in reaching the location of the caller. NOTE: F&ES calls may be routed to an internal on-site F&ES answering point providing the site maintains robust local police, fire, and medical services such that these can replace public services. NOTE: In the event a public F&ES answering point is the primary answering point for the site, calls must be directly routed to it and not relayed via a local emergency answering point. A second call from the local emergency answering point should not be required to obtain emergency services from the public F&ES answering point unless the site maintains full and comparable police, fire, and medical services and its answering point is the primary. NOTE: In the event a local private answering point is the primary answering point, and if this private answering point is not fully staffed on a 24-7 basis, the MLTS must route F&ES calls to the public answering point when the local answering point is not fully staffed, for example outside the normal working hours of the site.

Check Text ( C-25753r1_chk )

Interview the IAO to validate compliance with the following requirement:

Ensure the local DoD Multi-Line Telecommunications System (MLTS), VoIP or traditional, routes calls to the designated local emergency services number at the public and/or private emergency services answering point (PSAP) as a priority call in a non-blocking manner.

NOTE: In the event the F&ES calls are routed to a public entity outside the MLTS, the call should also be routed to an internal emergency number in parallel with the external call. Both calls should have the same priority. This is so that the site can be aware of the emergency and assist the F&ES responders in reaching the location of the caller.
NOTE: F&ES calls may be routed to an internal on-site F&ES answering point providing the site maintains robust local police, fire, and medical services such that these can replace public services.
NOTE: In the event a public F&ES answering point is the primary answering point for the site, calls must be directly routed to it and not relayed via a local emergency answering point. A second call from the local emergency answering point should not be required to obtain emergency services from the public F&ES answering point unless the site maintains full and comparable police, fire, and medical services and its answering point is the primary.
NOTE: In the event a local private answering point is the primary answering point, and if this private answering point is not fully staffed on a 24-7 basis, the MLTS must route F&ES calls to the public answering point when the local answering point is not fully staffed, for example outside the normal working hours of the site.

Fix Text (F-22300r1_fix)
Ensure the local DoD Multi-Line Telecommunications System (MLTS), VoIP or traditional, routes calls to the designated local emergency services number at the public and/or private emergency services answering point (PSAP) as a priority call in a non-blocking manner. Configure the telephone system to treat calls to the designated emergency services number as a priority call in a non-blocking manner. NOTE: In the event the F&ES calls are routed to a public entity outside the MLTS, the call should also be routed to an internal emergency number in parallel with the external call. Both calls should have the same priority. This is so that the site can be aware of the emergency and assist the F&ES responders in reaching the location of the caller. NOTE: F&ES calls may be routed to an internal on-site F&ES answering point providing the site maintains robust local police, fire, and medical services such that these can replace public services. NOTE: In the event a public F&ES answering point is the primary answering point for the site, calls must be directly routed to it and not relayed via a local emergency answering point. A second call from the local emergency answering point should not be required to obtain emergency services from the public F&ES answering point unless the site maintains full and comparable police, fire, and medical services and its answering point is the primary. NOTE: In the event a local private answering point is the primary answering point, and if this private answering point is not fully staffed on a 24-7 basis, the MLTS must route F&ES calls to the public answering point when the local answering point is not fully staffed, for example outside the normal working hours of the site.

Fix Text (F-22300r1_fix)

Ensure the local DoD Multi-Line Telecommunications System (MLTS), VoIP or traditional, routes calls to the designated local emergency services number at the public and/or private emergency services answering point (PSAP) as a priority call in a non-blocking manner.

Configure the telephone system to treat calls to the designated emergency services number as a priority call in a non-blocking manner.

NOTE: In the event the F&ES calls are routed to a public entity outside the MLTS, the call should also be routed to an internal emergency number in parallel with the external call. Both calls should have the same priority. This is so that the site can be aware of the emergency and assist the F&ES responders in reaching the location of the caller.
NOTE: F&ES calls may be routed to an internal on-site F&ES answering point providing the site maintains robust local police, fire, and medical services such that these can replace public services.
NOTE: In the event a public F&ES answering point is the primary answering point for the site, calls must be directly routed to it and not relayed via a local emergency answering point. A second call from the local emergency answering point should not be required to obtain emergency services from the public F&ES answering point unless the site maintains full and comparable police, fire, and medical services and its answering point is the primary.
NOTE: In the event a local private answering point is the primary answering point, and if this private answering point is not fully staffed on a 24-7 basis, the MLTS must route F&ES calls to the public answering point when the local answering point is not fully staffed, for example outside the normal working hours of the site.