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Voice Disaster Recovery Needs Assessment Survey |
Increasingly, university voice and data networks must be engineered for high survivability during disaster scenarios that involve the failure of network components and/or extremely high call volumes that often occur during times of regional or national crisis. The Internet2 Voice over IP (VoIP) Working Group is testing solutions to provide the HEC with voice services that have high availability during times of crisis.
The Internet2 VoIP Disaster Recovery Working Group has been building a national system for telephony services utilizing Internet2’s Abilene backbone network. Abilene provides a high capacity, extremely resilient data infrastructure that can offer an alternative pathway for communication in disaster scenarios. Internet telephony over Abilene can be used to supplement a university's circuit-switched telephone system to provide an increased level of voice survivability.
Georgetown University has partnered with BroadSoft, PAETEC Communications Inc., and the Mid-Atlantic Crossroads (MAX) to test and demonstrate an emergency IP voice service for Internet2 members.
The initial design consists of two BroadWorks nodes deployed in physically separate locations (with a primary node at MAX/Georgetown University and a secondary node at Texas A&M to provide geographic redundancy). SIP phones are deployed on campuses to serve as emergency endpoints, replacing existing back-up POTS (Plain Old Telephone Service) lines provided by the LEC (Local Exchange Carrier). SIP (Session Initiation Protocol) gateways are deployed within PAETEC POPs and terminate in College Park, MD and Boston, MA. The SIP gateways provide inter-working to the PSTN (Public Switched Telephone Network) for inbound and outbound calls. This design provides a comprehensive disaster recovery voice service in the event of: an equipment failure at the customer premises; compromised PSTN connectivity; or even a catastrophic central office loss. Organizations that are currently participating include the University of Pennsylvania, Texas A&M University, Harvard University, Massachusetts Institute of Technology, Catholic University, DC Government, and Boston University.
This initial design provides inbound and outbound disaster recovery voice service in the event of any of the following scenarios:
Future phases may include local numbers (dial tone) for participating campuses, inter-campus dialing plans, and automatic carrier dial tone re-homing.
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