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An Internet T1 (or T-1 line) is a digital, dedicated local access connection supporting data rates of 1.544 Megabits Per Second (Mbps) that can be channelized into 24 individual channels that each provide 64 Kilobits Per Second (Kbps).

Voice over Internet Protocol (VoIP) service that sets up telephone calls over the Internet that are often billed at a flat rate and leverage subscribers existing broadband Internet connection. This saves money in that only one connection is needed for both voice (phone) and data (Internet) service.

The ADSL downstream receiving rate from the Internet usually varies from 1.5 to 9Mbps while the upstream sending rate usually varies from 16 to 640 Kbps.

The main limitation on DSL bandwidth speed is the distance from the customer premise to the local telephone company central office.

MPLS works across various data protocols such as the Internet Protocol (IP), Asynchronous Transport Mode (ATM), and frame relay. MPLS forwards most packets at layer 2 (switching) instead of at layer 3 (routing) level.

Internet access via Ethernet is becoming more and more popular to meet the growing demand for dynamic high bandwidth increases. For example, an increase from 10 to 100 Mbps can be accomplished by a High Speed Internet over Ethernet provider by simple changing the settings on already installed Ethernet switches. This scalability is cost effective for customers in that bandwidth can be increased or decreased quickly and easily, on demand, without the necessity of adding or changing datacom equipment as would be required with T1 / T3 or E1 / E3 local access lines.

Digital Subscriber Line Service (DSL) has become a very popular Internet access service. This is because DSL uses the existing copper pairs that already exist between most customer premise offices and the local phone company central office (CO). A DSL connection is set up between a DSL modem at the customer premise and a DSL access multiplexer, or DSLAM, at the phone company central office. Both voice and data can be run across the same DSL connection by using a filter to separate voice traffic from Internet traffic.

High-speed microsave and satellite Internet connections for business can replace or back up traditional terrestrial landlines such as Internet T1s and Digital Subscriber Line (DSL) service. With wireless Internet service in place as your primary or backup Internet connection, you can always count on low-latency connection to the Internet that means you will have an "always up", "never down", "zero outage" service that eliminates wasted time and increases productivity.

If you are looking for clear, concise definitions of telecommunication terms and explanations of telecom services, especially how they are used and how they work, TelecomLInks is a great place to start.

MPLS makes it easier to manage network for quality of service (QoS) because packets can be prioritized by business importance. For example, Voice over IP (VoIP) can be prioritized over email and web browsing packets.