One of the largest Project 25 (P25) networks in the world provides reliable, resilient and secure voice and data communications to the thousands of men and women of the Department of Homeland Security (DHS) Customs and Border Protection (CBP) who patrol and secure the U.S. Southwest frontier. Immigration and Customs Enforcement (ICE) officers and other federal officials use the

network as well.

The overall project provides communications capabilities for CBP field personnel in 20 geographic focus areas across the United States.

System Overview

1. Provide 24/7 secure, digital P25 service along the entire length — nearly 500 miles — of the Arizona/Mexico border;
2. Provide continuous two-way radio service in the event critical communications facilities such as radio links, telco hubs or equipment are lost;
3. In the event of a site equipment failure, provide the ability to remotely access the problem site and provide a patch-around capability;
4. Provide a minimum latency transport infrastructure to enable operation of key P25 features such as over-the-air rekeying (OTAR)and programming (OTAP);
5. Full support of non-networkbased appliances on the IP network without affecting radio network traffic performance;
6. Support for all P25 base and repeater equipment interfaces including interfacing to the Motorola Quantar and AstroTac via V.24 interfaces;
7. Provide full online remote access to all Motorola equipment via Motorola’s Radio Service Software (RSS) port, minimizing the need for on-site support personnel;
8. Provide a true mesh least-cost networking capability for nearinstantaneous alternate routing in the event of site or link failure;
9. Allow remote operations for multiagency and disaster operations;
10. Provide the ability to quickly and securely provision the network for special needs and requirements;
11. Support maintenance via a deep ability to remotely diagnose and monitor traffic of all LMR and non-LMR assets;
12. Enable federal, state and other governmental agencies to independently and securely use the network;
13. Minimize site installation and provisioning visits by pre-staging, provisioning and testing each network site prior to installation;
14. Support T1 to DS-3 telco service connections; and
15. Provide support to future broadband wired and wireless media connectivity.

New Concepts Employed

The Arizona CBP digital network upgrade featured several new concepts in logistics, mobile radio IP networking, and techniques of the administration and operations and maintenance (OAM) of large networks

• Pre-staging and provisioning of each site;
• Mix-mode IP transport and packet switching of circuit- and packet-based P25 traffic;
• Using both new and existing legacy infrastructure media such as UHF and microwave;
• Analog and digital telco facilities; and
• Advancing techniques of remote diagnostics, remediation of faults and system provisioning.

Solutions Provided

• IP backbone site controllers and networking equipment (SAFARI™ Wireless Networking Controller)
• Integration of backbone networking equipment (SAFARI™ Commander)