Apposite's Linktropy and Netropy WAN emulators simulate bandwidth, delay, loss, and other network impairments. Precise, intuitive, & affordable.

Itrinegy (formerly Itheon Networks) develops network emulation (network simulation) and application performance monitoring tools to help you maximize the performance of your applications in production networks including Wide Area Networks (WAN), Wireless LAN, Satellite, MPLS, mobile (3G, 4G, LTE, GPRS) and other networks.

The PacketStorm IP Network Emulators and simulators reproduce the unfavorable conditions of IP Networks and WANs in a controllable and repeatable lab setting, and our Route Analyzers monitor, record, and troubleshoot routing protocols of networks to maximize network availability by identifying and diagnosing IP routing faults in real time.

GL Communications Specializes in PC-Based & Laptop-Based Telecommunications Testing and Measurement Products & Consulting Services

Keep up to date on the latest news and views about VoIP, IP PBXes, converged networks, Hosted PBXes, and other business telephony solutions.

Electronic Test and Measurement and Automatic Test equipment and systems, ATE, information on products and services

Riverbed. WAN optimization for your network: Application acceleration, WAN bandwidth optimization, and IT consolidation Riverbed is the IT performance company. WAN optimization solutions from Riverbed liberate businesses from common IT constraints by increasing application performance, enabling consolidation, and providing enterprise-wide network and application visibility – all while eliminating the need to increase bandwidth, storage or servers.

Harvard School of Engineering and Applied Sciences. Serving as the connector and integrator of Harvard's teaching and research efforts in engineering, applied sciences, and technology. Includes information about undergraduate and graduate degree programs, faculty and areas of research, and resources for prospective students, partners, and alumni.