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July 13, 2023

What are Leased Lines and How are They Used for Business?

By Hazel Jeffs

Reliable and high-speed internet connectivity has become indispensable for an increasing number of businesses. Enter leased lines - a dedicated and efficient solution that can meet the connectivity needs of many different kinds of companies. 

 This guide aims to shed light on leased lines, including the buying process and the different options available, to help businesses make informed decisions. 

Understanding Leased Lines 

Leased lines, also known as dedicated lines or private circuits, are high-performance data connections with symmetrical upload and download speeds. 

 Unlike standard broadband connections, where multiple users share a single bandwidth, leased lines offer a dedicated connection solely for your business. This ensures consistent performance and reliable connectivity, which is crucial for data-intensive tasks, real-time applications, and cloud-based services. 

When it comes to transferring large files or engaging in activities requiring real-time data transmission, upload speed plays a vital role. Leased lines offer symmetrical bandwidth, meaning the upload and download speeds are the same. This makes them ideal for businesses that frequently upload large files, use video conferencing, or rely on cloud-based services. 

Leased lines operate using fibre optic cables, which enable the transmission of data at high speeds over long distances. The use of fibre optic technology ensures minimal signal degradation and allows businesses to enjoy high-speed connectivity. This is true even during peak usage times. 

Benefits of Leased Lines 

Reliable and Consistent Performance: 

Unlike standard broadband connections, which can experience fluctuations in speed and performance due to shared bandwidth, leased lines provide a dedicated connection solely for your business. This means continuous, high-speed connectivity. 

Symmetric Bandwidth: 

One of the key advantages of leased lines is the provision of symmetric bandwidth. This means that the upload and download speeds are equal, making leased lines ideal for businesses that engage in data-intensive activities.   

Security and Privacy: 

When it comes to data security and privacy, leased lines excel compared to regular broadband connections. 

 Leased lines provide a dedicated and private connection for your business, deleting the risk of data breaches or interference from other users. With leased lines, you can feel at peace with the knowledge that your sensitive business data and communications are transmitted over a secure and isolated network. 


As your operations expand and your connectivity needs evolve, you can upgrade leased lines to higher bandwidth options without the need for significant infrastructure changes.  

This ensures that your leased line connection can adapt to your business's changing requirements, providing the flexibility and agility necessary to stay competitive in a dynamic marketplace. 

Use Cases for Leased Lines 

Business Applications:  

Leased lines are vital for businesses that heavily rely on cloud services, VoIP (Voice over Internet Protocol), video conferencing, and remote collaboration tools.  

These applications require a stable and high-speed internet connection to function optimally. Leased lines ensure that businesses can access cloud-based applications, collaborate in real-time, and communicate seamlessly, enabling enhanced productivity and efficiency.  

E-commerce and Online Transactions: 

For online businesses that process a large volume of transactions, having a secure and stable internet connection is paramount.  

Leased lines offer the reliability and security necessary to ensure smooth and uninterrupted online transactions. By providing a dedicated and private connection, leased lines prevent latency issues and data congestion that can hinder e-commerce operations.  

This enables businesses to offer a seamless and secure online shopping experience to their customers. 

Content Delivery: 

Media companies, content providers, and streaming platforms require fast and reliable connectivity to deliver digital content to their audiences. 

 Leased lines facilitate the efficient distribution of large files, videos, and media content, ensuring minimal buffering and high-quality streaming experiences.  

With leased lines, content providers can reach their audience with speed and reliability, enhancing user satisfaction and maintaining a competitive edge in the digital entertainment industry.  

The Process of Buying and Setting up a Leased Line 

Acquiring and setting up a leased line involves several important steps: 

Research and Assessment: 

Begin by assessing your business's connectivity requirements. Consider factors such as the number of employees, the nature of your operations, and the volume of data you need to transfer.   

Evaluate your current and future bandwidth needs to ensure the leased line can accommodate your business's growth. 

Selecting a Provider: 

Choosing the right leased line provider is crucial for a seamless experience. Look for a reputable provider with a proven track record of delivering reliable and high-quality services.  

Consider their coverage area and ensure they can meet your business's location-specific requirements. Evaluate the service level agreements (SLAs) offered by different providers, paying attention to factors such as uptime guarantees, response times, and the availability of 24/7 support. 

Installation and Setup: 

Once you have selected a provider, the next step is the installation and setup of the leased line.  

This typically involves a site survey to assess the physical requirements and determine the optimal route for the line. Engineering work may be necessary to lay the fibre optic cables and set up any additional equipment required. Your installation team may also handle any configuration work which needs to be done. 

Testing and Activation: 

After the physical installation is complete, the leased line will need to be thoroughly tested to ensure optimal performance.  

This includes verifying connectivity, conducting speed tests, and checking for any potential issues. Once the line passes all the necessary tests, it is activated and ready to use. Regular monitoring should be implemented to ensure the line continues to perform optimally. 

Exploring Different Leased Line Options 

Several leased line options are available, each catering to different business needs. Let's explore some of them: 

Ethernet First Mile (EFM): 

EFM uses multiple copper pairs to deliver symmetrical speeds at a more affordable cost compared to traditional leased lines. 

Ethernet over Fiber to the Cabinet (EoFTTC): 

EoFTTC combines fibre and copper infrastructure to provide high-speed connectivity over shorter distances. It offers an excellent balance between performance and cost-effectiveness, making it an ideal choice for businesses located near the cabinet. 

Ethernet over Fiber (EoF): 

EoF leverages dedicated leased line connections using fibre optic cables, ensuring maximum performance and scalability. With EoF, businesses can enjoy symmetrical, high-speed connectivity regardless of distance, making it a reliable choice for data-intensive operations. 

Point-to-Point Leased Line: 

A point-to-point leased line establishes a dedicated, private connection between two locations. It is an excellent solution for businesses with multiple offices or data centres that require secure and efficient communication.  

MPLS Leased Line: 

MPLS technology offers secure and reliable connections for businesses with complex networking requirements.  

It allows for efficient data transmission across multiple sites, ensuring seamless communication and allowing the prioritisation of specific types of network traffic. MPLS leased lines are particularly beneficial for businesses with geographically dispersed locations. 


Leased lines offer businesses reliable connectivity and high-speed internet access, fulfilling their essential connectivity needs. By evaluating your requirements and considering leased lines as a robust solution, you can unlock the benefits they bring.  

Remember, SpiderGroup are here to assist you in choosing and implementing the most suitable leased line solution for your business. With a dedicated and reliable leased line, you can ensure seamless connectivity, maximise productivity, and stay ahead in today's digitally driven business landscape. 

Learn more about the internet and connectivity services we can provide or contact us today for a consultation. 


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