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What are Leased Lines and How do They Work?

Demystifying Leased Lines

What are leased lines and how do they work? Leased lines are a type of dedicated, point-to-point telecommunications connection that provides uninterrupted, high-speed, and secure data transfer between two locations. Businesses and organizations that need reliable and fast internet connectivity for their operations commonly use these lines. In this article, we’ll explore the details of how leased lines work and their advantages.

How Leased Lines Work

Leased lines work by providing a direct connection between two locations using a dedicated physical circuit. The service provider owns and maintains this circuit, which may comprise copper, fibre optic, or wireless connections. Unlike regular broadband connections, dedicated lines offer symmetric bandwidth, meaning that the upload and download speeds are the same. Applications that necessitate transferring large amounts of data in both directions, such as video conferencing, cloud computing, and online backups, can greatly benefit from this feature, making it an ideal choice.

To set up a leased line connection, a business needs to first contact a service provider who offers this service. The provider will assess the business’s requirements and propose a suitable connection speed and bandwidth. The provider will then install the necessary equipment at both locations, including a router and a Network Interface Card (NIC) to connect the circuit to the business’s LAN. Once the circuit is up and running, the business can use it to transfer data securely and quickly between its two locations.

Advantages of Leased Lines

Leased lines offer several advantages over regular broadband connections. Firstly, a dedicated and uncontended connection is provided, ensuring that the bandwidth is not shared with other users. This ensures that the connection remains fast and reliable even during periods of high traffic. Secondly, leased lines provide guaranteed uptime, with most service providers offering a Service Level Agreement (SLA). This makes them ideal for businesses that rely heavily on internet connectivity for their operations, such as financial institutions and healthcare providers.

Lastly, dedicated line provide enhanced security features. The connection’s dedicated nature makes it immune to hacking or other cyber threats that could impact shared connections. In addition, dedicated lines can provide an extra layer of security by encrypting the transmission of sensitive data.


In summary, dedicated line services are a type of dedicated telecommunications connection that provides reliable, and fast transfer between two locations. They are ideal for businesses that require uninterrupted and symmetric bandwidth for their operations. Leased lines offer several advantages over regular broadband connections, including guaranteed uptime, enhanced security features, and dedicated bandwidth.

If you’re looking for guidance on selecting the right internet package, check out Wanzo’s guide.

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