2009 Q3 — Washington, DC — Photos

AT&T Network Disaster Recovery (NDR) equipment trailers arriving at
RFK Stadium in Washington, DC for the third quarter recovery exercise
on July 8, 2009.

One of NDR's command center trailers being positioned at the recovery
exercise site at RFK Stadium in Washington, DC on July 9, 2009.

Positioning an NDR recovery equipment trailer at the third quarter exercise
site at RFK Stadium in Washington, DC. July 9, 2009.

Connecting a power cable to NDR's power distribution trailer at the
Washington, DC exercise site on July 9, 2009. The site is powered by
a central 750kW generator; the individual technology trailers have their
own back-up generators to provide a redundant power source.

An NDR satellite COLT (Cell on Light Truck) arriving at the recovery
exercise site in Washington, DC. The COLT provides cellular service
using a terrestrial or a satellite connection to the AT&T Network. July 9, 2009.

Overview of NDR's third quarter disaster recovery exercise at
RFK Stadium in Washington, DC on July 10, 2009.

Pulling T3 communications cables at the NDR exercise site in Washington, DC.
The technology trailers are interconnected using fiber optic and electrical (T3)
communications cables. July 11, 2009.

Stitching down T3 communications cables in an NDR recovery
trailer cable bulkhead at the Washington, DC exercise. July 11, 2009.

Connecting cables in a recovery trailer bulkhead at the Washington, DC
exercise on July 11, 2009. The trailers are interconnected following an
engineering plan that allows the trailer complex to replicate the functions
of a failed office.

Pulling T3 communications cables at the NDR exercise site in Washington, DC.
The technology trailers are interconnected using fiber optic and electrical (T3)
communications cables. July 11, 2009.

NDR Operations Team members pulling communications cables
at the Washington, DC exercise site on July 11, 2009.

Connecting fiber optic jumpers in an NDR recovery trailer at the
Washington, DC exercise on July 12, 2009.

Technology testing in an NDR IP recovery trailer at the Washington, DC
exercise site on July 13, 2009.

Call path testing in a fiber optic transport equipment trailer at the
NDR exercise in Washington, DC on July 13, 2009.

NDR Operations Team on the last day of the Washington, DC
exercise. July 16, 2009.

NDR Ops Team members pulling a power cable during site breakdown
on July 16, 2009.

Disconnecting fiber optic cables in a recovery trailer bulkhead
on July 16, 2009.

Returning power cables to a storage bin during site breakdown
on July 16, 2009.

Stowing a fiber optic cable in a cable bin during site breakdown
on July 16, 2009.