Providing a direct connection to the XO IP network reduces recurring costs of the PSTN and data circuits, as well as eliminates the costs associated with the purchase, support, and maintenance of media gateways.

Voice traffic is prioritized though XO’s Dynamic Bandwidth Allocation. This allows businesses to maximize the full IP circuit, and helps them ensure that when voice lines are idle, data traffic is supported. The selection of port speeds and scaled calling plans to fit the needs of each customer are also available without the hassle of per line fees.

The benefits and features of the XO SIP service include:

• XO SIP is available in 1.5 Mbps, 3.0 Mbps, 4.5 Mbps, 10 Mbps using either fiber, copper, or serial DS1 Ethernet, and 45 Mbps using DS3
• Standard features include unlimited local calls, portable local numbers, unlimited site-to-site calls, free local DIDs, E911, 411, caller ID, operator and directory listing services, and customized inbound and outbound toll free calls

Expanding data capabilities is simplified with XO’s wide range of features:

• Voice communications bundled with dedicated Internet access. This includes web-based online management and web hosting
• 100 megabytes of disk space, 10 email accounts, and virus protection with Perimeter Email Protection to fight spam, wrongly sent emails, and viruses
• 1 gigabyte bandwidth

Improve your network’s performance using these optional features:

• Have more voice calls simultaneously on the same bandwidth using compression
• Efficiently field and deliver inbound calls to their respective destinations by using auto attendant
• Use the voice virtual private network to configure private dial plans for on-net call routing
• Establish customer support numbers, order-taking centers and technical assistance lines using the business call center
• Virtual DIDs allow companies to establish a local presence in markets where there is no physical business address, giving them the unique capability to serve customers in different markets

Ethernet is the better choice

XO’s Ethernet has become the industry standard for network connectivity as a whole – whether you’re connecting to an Internet provider, to other computers on a LAN or to connect LANs to each other. The straightforward plug-and-play solution is easy to install and easy to manage. It enables businesses to add or “scale” bandwidth on demand, giving you more control for less money. Ethernet is also less expensive than older, alternative network technologies. It is a smaller, less complex network requiring fewer installations and less equipment to send data through your network.

If it’s flexibility you’re after, look no further. XO has the ability to reach hundreds of thousands of business locations through a combination of access options: fiber, copper loops or trunks, and broadband wireless connections. With so many options, XO is making Ethernet the most practical, cost-effective solution for extending your Local and Wide Area Network as well as transporting voice and data services. XO’s Ethernet allows you to facilitate and manage your own applications – across town or across the country – just like you manage the network in your office.

XO strives to provide you with the best solutions for extending your LAN and WAN in the most cost-effective manner possible. In addition to carrying your own applications, XO provides a variety of voice and data services that use Ethernet as the underlying transport mechanism.

Use XO Ethernet solutions for:

• Private Line
• Extended Local Area Network
• Wide Area Network
• Converged IP services
• IP-VPN services

What XO Ethernet does for you

XO’s Ethernet service will help you create an extension of your internal office network to include offices across town or in another state into your network as part of the extended LAN feature. Customers can also access WANs – such as the Internet – via their Ethernet private line. The network provides you with converged IP services, which include a suite of IP-VPN features to help you create a virtual private network using your private line.

Features & Benefits

• Save money by providing more bandwidth at a lower cost per megabit
• Simplify network management with easy to installations, upgrades, and maintenance
• Increase your productivity with the capability of transferring large data files on a single network
• Select connectivity depending on access type, options range from 10 Mbps to 10 Gbps
• Achieve support for standard IEEE 802.3-compliant LAN protocol interfaces: 10BaseT, 100BaseTX, and 1000BaseSX/LX
• 24/7 monitoring and customer care support
• Simplify with a single point of contact for customer service
• Reduce costs with Customer Premise Equipment (CPE) supplied and managed by XO, with demarcation point on CPE
• Obtain strong Service Level Agreements (SLAs)

There are, of course, a variety of Ethernet private line services. Most of the time, these involve the varying structures of the network at hand. Some Ethernet lines send SONET payloads via T1 and DS3 networks, but faster, bigger Ethernet structures such as 10BaseT networks rely solely on a SONET framework to transfer the compressed data.

Full rate and partial rate Ethernet connections for 100BaseT and 10Gigabit connections also utilize the high speed capacities of SONET in order to send data.

SONET Payloads

In order to understand how Ethernet private lines work, it’s best to know what SONET payloads are. These are basically compressed packets of data that travel at varying speeds, depending on the bandwidth capacity of your network. To illustrate: your basic SONET payload travels at a rate of 49.5Mbps. A partial rate SONET payload is generally around this size for simpler Ethernet connections,

Full SONET payloads are heavier STS-1 units, however, full rate Ethernet speeds are capable of handling concatenated STS-3c payloads, capable of high speed traffic movement of up to 600Mbps.

Concatenation of STS-1 payloads mans increasing the bulk size of each payload by up to 200% of itself. This entails putting together, or linking, STS-1 payloads with each other, and can be done by linking them at the end points of each payload, creating an STS-1-3v payload which carries denser data packets through a Gigabit Ethernet connection at 150Mbps.

Customer Interfaces

Electrical customer interfaces are provided by services that offer at least 10Mbps Ethernet solutions. This is based on the 10Base-T standard, which involves twisting two unshielded cable pairs of up to one hundred meters in length together.

The same holds true for faster Ethernet networks – the customer interface is electrical for 100Base-T and 100Base-TX standards, and the electrical cables used are also of the same cable length. Installation of the Gigabit Ethernet network, however, requires a different set of cables, and uses optical interfaces instead – for example, the 1000Base-SX model uses multi-mode fiber, while the 1000Base-LX standard uses single-mode fiber.

Alternatively, customers can opt for a fully optical system using a SONET handoff. Instead of installing a system that runs on a purely Ethernet-oriented system, one end of the connection can be based on the SONET interface, which uses optical cables and runs on digital models such as OC-3 or OC-12.

Why go Ethernet

Most high-speed Ethernet private lines rely on SONET structures in order to transfer high-speed information with near-perfect quality – plus, the technology is known for its resiliency, which only makes the system more dependable. The biggest argument as to why Ethernet private lines work is because they are less expensive to implement and maintain than other private line services.

Thanks to its unique infrastructure, Opt-E-Man is highly capable of providing its customers with a variety of flexible bandwidth options, ranging from a network connection with transfer speeds of 5Mbps to a Gigabit Ethernet connection that transfers 1Gbps. All network infrastructures come with a guarantee that the network solution is scalable – which means that if you find that you need to switch to an Ethernet service that’s faster than your current setup, it’s as easy as letting AT&T know.

Opt-E-Man supports a variety of ways in which you can send data to anywhere within your network. Some of the transport configurations it has include the basic point-to-point configuration, a more complex point-to-multipoint setup, and the ultimate multipoint-to-multipoint mega connection.

That’s because Opt-E-Man uses a unique mix of physical and virtual connections to make sure that your data gets through when you want it, where you want it. The Ethernet virtual connection solution is a unique method of transferring information through optical fiber connections. By shooting Ethernet LAN packages through these optical fiber cables that travel through your intraLATA network, Opt-E-Man is capable of transmitting information to virtually anywhere in your network – even to the Internet. It can also access network-based VPN services by connecting you to a network-terminating server at your location, and then using a network router, switch, or bridge to connect to the service.

Components of Opt-E-Man

A service wouldn’t be exceptional if its basic parts weren’t exceptional – and Opt-E-Man uses components that are some of the best in the industry today. For its specialized network terminating functions, Opt-E-Man uses an Ethernet interface capable of handling multiple payloads at any given time. This interface uses a specified Ethernet port to transport the data, which is used to end the flow of incoming data and begin the execution of incoming payload.

As mentioned earlier, the Ethernet virtual connection used by Opt-E-Man is the system’s way of generating a variety of randomized circuits to facilitate multipoint connections. This enables the Ethernet line to connect to a variety of physical end connections, as well as to connect to the Ethernet cloud network

Users are also given the choice to select an option which they think will fit their business best:

• Bronze service assures you of full support for your data applications, and will be most beneficial for users who wish to just get their network connected.
• Silver service users are given all the benefits bronze service customers receive, but are also given high-speed support that will ensure the minimal loss of data integrity, as well as a low latency rate for services that require unusually fast connections, such as Voice over Internet Protocols.

What you get from Opt-E-Man

Opt-E-Man’s private line network is a scalable solution, so if you need to change the parameters of the service you’re currently using or add new locations into your network, you won’t have to worry about going through a full-scale network revamp. That’s because this Ethernet network’s architecture is simple in structure, requiring less servers and relying mostly on physical cable connectivity instead. And since it’s a simpler network structure, Opt-E-Man is a cost-effective alternative for customers who are looking for a reliable and secure way of setting up a private network for their company.

GigaMAN works similar to an adapter. It copies your LAN protocol, then simulates and uses the exact same protocol to connect to WANs. By doing this, GigaMAN lets you use the full potential of your existing LAN while transmitting and dispersing the data you send throughout your network.

Whether you’re trying to connect to the building across the street or to an office across the city, GigaMAN gets it done. This service lets you transmit SONET payloads at 1Gbps, a speed that’s twenty two times faster than your average DS3 service.

GigaMAN works by connecting your Ethernet switches. The existing switches are connected via dedicated single-mode optical fiber cables. Throughout the connections are sections called demarcation points where specialized fiber repeaters are installed. This technology is the same interface used for both multi-mode and single-mode optical fibers, and uses a standard stick-and-click connection to serve as a demarcation for where the network terminating equipment are.

Service Features

Both GigaMAN and DecaMAN come with top-quality service features that are tailored to meet the heavy networking requirements of most networking systems today.

Depending on your specific network needs, you can choose from the standard GigaMAN service, ranging from 1000Base-SX and 1000Base-LX single mode services. Or, if you need something that’s even more powerful, the DecaMAN services offer high gigabit levels of network speed. This includes the 10GBase-LR that gives you a service option of a physical LAN with 1310nm of single mode fiber optics; or the 10GBase-LW service, which gives you a WAN with physical 1210nm single mode fiber optics.

Using wavelength division multiplexing, AT&T can implement a network architectural design that will deliver multiple circuits over the same fiber optic pair. This serves as a redundancy measure to conserve the facility size that is needed to implement the system. AT&T engineers will design the system to meet with your current network needs, and will be on hand to provide the necessary equipment required by the network upon installation.

If you have pre-existing network equipment, they will utilize it to improve the speed of installation and the quality of service you will be getting out of your network.

Why choose AT&T

GigaMAN and DecaMAN high-speed Ethernet are two of the best private-line options in the market today. In terms of product breadth and stability, you are assured that whatever service you get will be the most robust Ethernet solution your business will ever experience.

You won’t ever have to worry about your network’s performance – AT&T monitors your network 24/7, because you can’t have a network that crashes when you need it most.