SDSL Services

What is SDSL?

SDSL is part of the DSL (broadband) family. SDSL is used to describe a high-speed symmetric connection for Internet access over a dedicated line. Unlike ADSL (A-symmetric Digital Subscriber Line) SDSL has equal upload and download speeds, as the name might suggest. Due to the nature of the technology a dedicated line is required therefore it is not possible to use it as a phone or fax line, this is one of the main differences between SDSL and ADSL.

MLR's SDSL service is faster than ADSL as it has the 'same speed both ways', which means the service is equivalent to a high-speed leased line at a much lower cost. The service offers instant high-speed Internet access to multiple users on office networks, with a low contention ratio of 10:1 giving a seamless, business focused connection.

SDSL technology will improve solutions that rely extensively on the Internet such as Virtual Private Networks, Voice over IP, Video conferencing and point-to-point connectivity. Such services rely on large amounts of bandwidth and low contention ratios in order to maximise the potential of the applications.

SDSL will be connected to your network using a dedicated SDSL router. At the other end MLR will provide fast Internet access, securely and efficiently. MLR also provide customers with a full suit of Internet services such as secure hardware firewalls, back-up facilities, fully integrated mail systems, hosting, co-location and domain name management.

With MLR's always-on SDSL service, we also offer a flat rate pricing structure, so budgeting for your companies Internet spend could not be easier. Implementing an SDSL solution means that data is transmitted and received at the same speed enabling you to maximise efficiency and productivity. These benefits are similar to those of a leased line with out the large costs associated such a solution.

SDSL is currently available in limited areas, this is however expanding month on month as BT endeavour to roll out the service to many other geographic locations. MLR can conduct a survey of your premises on request to see if the service is available and what speed of connection you could receive.
If SDSL is available in your area, the speed of the connection you are able to receive depends on the distance of your premises from the local telephone exchange.

The following table is a guide to the geographic limitations.

MLR's high-speed SDSL runs over a high performance IP backbone, MLR utilise multiple ISP fibre carriers in all Data Centres to provide true redundancy of the network.

The charges for an SDSL service are made up of two parts; firstly, the access circuit costs, including any configuration by BT and then the Internet services supplied by MLR. As SDSL is dependant on distance from the exchange, it is essential that MLR conduct a survey to see if SDSL is feasible on your premises.