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Extending T1 over Metro Network
Migrating from an aging ATM to a pure IP infrastructure that supports all existing T1 voice applications without compromising voice quality or functionality
RAD’s IPmux-16 TDMoIP gateway emulates T1 circuits over IP to deliver low latency, high quality voice over the fiber optic, metro Ethernet ring
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- Provides migration path from complex and aging ATM to efficient IP infrastructure
- Eliminates the need for separate, costly T1 circuits
- Transparently maintains all existing PBX system features and functionality
- Simple, cost-effective, compact and scalable solution
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The Austin Independent School District (AISD) sets high technology standards for its network infrastructure as a vital part of providing the type of high-quality educational experience that serves as a model to other school districts. The AISD serves approximately 77,000 students and a growing number of campuses, including 11 high schools, 17 middle or junior high schools, 71 elementary schools and four alternative programs.
Recently, the District took on an initiative to replace its ATM communications network with a pure IP environment, designed to link all 120 of its sites through a metropolitan area network. The project would ultimately involve the transfer of all ATM-based applications, including T1 voice circuit emulation, to a more cost-effective IP-based solution.
The RAD IPmux has allowed the Austin Independent
School District to implement a 100% IP network for both
data and voice services.
John Kohlmorgan
WAN Manager, Austin Independent School District |
The District turned to the Internet to search for a functional, cost-effective and scalable solution, and found one in RAD’s IPmux product line. They recently deployed RAD’s IPmux-16 TDMoIP® gateway into its network. “The RAD IPmux has allowed the Austin Independent School District to implement a 100% IP network for both data and voice services. The ability to transport the T1 voice circuits over IP allows the District to leverage its current investment in the existing PBX hardware,” says John Kohlmorgan, WAN Manager of the Austin Independent School District.
Complete, Reliable Gigabit Ethernet Network
AISD’s network supports high speed Internet to every classroom, allows data connectivity among its various educational communities, delivers internal and external voice communications and provides voice conferencing and videoconferencing for its 13 distance learning classrooms.
The network is divided into two main fiber rings, North and South, with the Network Operations Center connecting between them. Six “supernodes” are spread among these rings, each hosting a Nortel Meridian PBX. Two RAD IPmux-16 units connect between standard T1 ports on each PBX and AISD’s QoS-enabled access switches. The dual IPmux configurations provide for enhanced availability.
The compatibility of RAD’s IPmux with this multi-vendor
environment plays a key role in reducing overall operating
costs and in enhancing system reliability.
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AISD’s network leverages best-of-breed components from a variety of vendors such as Cisco, Nortel and RAD. The District obtains Internet and I2 services from the University of Texas at Austin. The compatibility of RAD's IPmux with this multi-vendor environment plays a key role in reducing overall operating costs and in enhancing system reliability.
IP Surpasses ATM Network
“We were hoping to achieve the same functionality with IP as we did with ATM, but have now surpassed that,” states Rob Corley, Network Analyst for the Austin Independent School District. “We have been impressed with the level of service that RAD has provided to us. This is a very important aspect in our vendor of choice, especially for someone in my position who supports so many sites.”
“RAD’s products are cutting edge and exactly what the Austin School District needed to incorporate into its fiber network,” states John Stephenson, President of Advantage Telecom, the RAD value-added reseller who worked closely with the customer to implement the project. “By continuing to utilize RAD’s IPmux gateway, the District will be saving costs and providing both students and teachers with the most advanced educational environment.”
