Synchronous Optical NETwork (SONET) acts as a fast network backbone over which ultrahigh-speed, high-volume voice, video and data applications are run. SONET networks are often installed in the form of self-healing rings using dual fiber-optic strands. This construction provides fast, survivable transport over Verizon's extensive SONET network.

Verizon offers three SONET services to meet the changing and growing needs of businesses with multiple sites:

• Dedicated SONET Ring (DSR) Service - can act as a transport path for many different high-speed applications.
• Dedicated Wavelength Ring (DWR) Service - allows customers to add and drop various services or channels at each location.
• SONET Optical Point to Point Service - provides a dedicated, optical communications service with a SONET handoff.

When your connection carries important, time-sensitive content, the answer is a dedicated, facilities-based SONET network from Verizon.

Survivability

Verizon SONET is installed over a resilient, dual-fiber ring architecture.

Reliability

Verizon SONET provides highly available and reliable service.

Competitive Service Level Agreements (SLAs)

Verizon SONET is backed by stringent SLAs.

Fully Managed Verizon Solution

Dedicated SONET Ring (DSR) service is proactively monitored 24x7; where available, we offer an optional Customer Service Management (CSM) feature, which provides detailed, real-time views of network performance.

Fully Dedicated Service

Both the facilities and Add/Drop Multiplexer (ADM) nodes are fully dedicated.

Multi-Service Platform

DSR facilitates network convergence by providing the ability to bundle a variety of interfaces on one fiber backbone (IP and TDM).

Cost-Effectiveness

Verizon offers flexible bandwidth and pricing options with term discount plans.

Scalability

Verizon SONET can meet your current and future bandwidth requirements with no forklift upgrades required.

Verizon Dedicated SONET Ring (DSR)

A robust and highly survivable optical networking solution, DSR is secure enough to transport your mission-critical voice, data, and video applications, and powerful enough to handle enhanced Ethernet solutions for high-bandwidth LAN/WAN and SAN connectivity.

A resilient, dedicated ring architecture	Structurally sound with redundancy to help you avoid loss of services. Dual-fiber, dedicated ring architecture is designed to have no single point of failure to protect all of your applications. We provide 24x7 monitoring and support Our network is backed by competitive Service Level Agreements (SLAs) that offer service credits for affected network elements.
Flexibility	Facilitates network convergence by providing the ability to bundle a variety of interfaces on one fiber backbone (IP and TDM). Can carry traditional voice, data, and video applications, plus enhanced next-generation SONET interfaces such as Ethernet, Direct DS-1 access, and Trans-Multiplexing. Ethernet transport makes LAN-to-MAN-to-WAN connectivity seamless Native Ethernet circuits terminate directly on the Ethernet port, requiring no TM conversion.
Scalable and cost-effective	Can meet your current and future bandwidth requirements with no forklift upgrades required. We also offer flexible bandwidth and pricing options with term discount plans. DSR is available at OC-3, OC-12, OC-48, and OC-192 bandwidths. Available TDM interfaces include DS-1/DS-3, OC-3/3c, OC-12/12c, and OC-48/48c. DSR for GigE interfaces available include GigE1 (50 Mbps), GigE3 (150 Mbps), GigE6 (300 Mbps), GigE9 (450 Mbps), GigE12 (600 Mbps), and GigE24 (1000 Mbps), Fibre Channel (1 Gbps) and FICON (1 Gbps).

Verizon Dedicated Wavelength Ring (DWR)

This resilient optical transport service delivers more robust transport networks and increased operational efficiency. By transporting high-speed data protocols over a single fiber pair, DWR meets your demand for a scalable, converged network.

Single point-of-contact with a fully managed solution	We'll design a network solution based on your needs We can manage the entire installation process for you We provide 24x7 network support through our nationwide Network Operation Centers. With no costly capital outlays for the service, you can implement the converged network you need while still controlling costs.
Supports a full-range of applications	Mirror mainframe data Connect LANs and MANs Build a video network Extend your Storage Area Network Access a variety of optical interfaces, protocols, and bandwidths - all from one network solution.
Efficient, high-bandwidth transport	We use Layer 1 transport technologies -- DWDM and Ultra-Long haul (ULH) DWDM -- that allow protocol-independent transport over a single fiber pair, and eliminate the need for layered networks. Ring architecture operates as a single network, letting you easily add and drop channels at each of your locations. DWR also supports a broad range of protocols, with bandwidths ranging from 8 Mbps to 10 Gbps. You can provision each channel with different types of protection, depending on your network requirements.

Optical Point-to-Point Private Line Services

Choose from a broad array of options and configurations:

Metro Private Line Service	Provides a dedicated, optical communications service with a SONET handoff Speeds of OC-3, OC-12, OC-48 and OC-192 Concatenated (Full Bandwidth) Services and Channeled Services available
National Private Line Service	Provides a dedicated service across continental U.S. with analog and/or digital handoffs Capable of supporting voice, data and video communications Available from DS0 up to OC-192 service in various configurations, including point-to-point, point-to-multipoint, linear, protected paths, concatenated and channelized