Asymmetric Digital Subscriber Line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission over copper telephone lines than a conventional voiceband modem can provide. It does this by utilizing frequencies that are not used by a voice telephone call. A splitter - or microfilter - allows a single telephone connection to be used for both ADSL service and voice calls at the same time. Because phone lines vary in quality and were not originally engineered with ADSL in mind, it can generally only be used over short distances, typically less than 3mi (5 km).

At the telephone exchange the line generally terminates at a DSLAM where another frequency splitter separates the voice band signal for the conventional phone network. Data carried by the ADSL is typically routed over the telephone company's data network and eventually reaches a conventional internet network.

Fiber to the home (FTTH), also called "fiber to the premises" (FTTP), is the installation and use of optical fiber from a central point directly to individual buildings such as residences, apartment buildings and businesses to provide unprecedented high-speed Internet access. FTTH dramatically increases the connection speeds available to computer users compared with technologies now used in most places.

Providers primarily offer FTTH through two types of architectures, point-to-point and passive optical network (PON). Point-to-point requires providers to install an optical transceiver in the provider's central office for each customer. PON uses a single transceiver with a splitter to serve up to 32 businesses and residential customers who share the bandwidth. The splitter is located up to 30,000 feet from the central office, and a single strand of fiber can carry the signal another 3000 feet to the customer. Once the fiber reaches the customer's home or business, an optical electrical converter (OEC) on the side of the building converts the optical signal to an electrical signal that can interface with existing copper wiring. The current standard for PON is the Asynchronous Transfer Mode (ATM)-based ITU-T G.983.

CTCI's Fiber to the Home requires the end-user to have an ethernet / networking card in their computer for connection to our fiber. There is NO modem required for this service.

CTCI also sells and maintains wireless routers, cabled routers, access points and networking services to meet all of your networking needs.