Affordable and reliable Internet solutions

Home Page Network Status Web Programs Feature Sites Cool Tools Products & Services DSL Services Company Contacts Search Engines DSL Selections ADSL Price/Orders ADSL FAQ IDSL Price/Orders IDSL FAQ SDSL Price/Orders SDSL FAQ

IDSL PRICING & ORDERING

What is IDSL?

IDSL (ISDN digital subscriber line) is the longest ranging of new DSL access technologies used to provide high speed, always on, network services over existing copper wires.

What are the key benefits to IDSL?

IDSL has several deployment advantages over other DSL technologies such as ADSL and SDSL, and is better suited as a high quality, low cost, alternative to analog dial services:

IDSL

• IDSL uses proven loop technology (based on existing ISDN circuits) and can operate up to 18,000 feet, or longer with repeaters. This means service providers can offer a DSL service to all customers, irrespective of their distance from the central office. Other DSL technologies cannot operate through repeaters and very quickly lose their speed advantages over long distances.
• IDSL can operate through a digital loop carrier (DLC) based circuit, unlike other DSL technologies. It is estimated that up to 50% of customers are served through DLCs today in some locations.
• IDSL operates at significantly higher speeds than analog modems, and provides an always-on network connection.
• IDSL offers a fully symmetric service
• No loop qualification is required, significantly reducing the deployment cost of the service.
• Although based on the ISDN transceiver technology, IDSL does not operate over the ISDN voice switch; it is terminated at the DSLAM (digital subscriber line access multiplexer). This offloads the voice network of the high-utilization data calls and ensures the service provider can make more efficient use of the existing networks.

IDSL uses ISDN-based copper circuits, existing 2B1Q signaling, but does not use the D-channel signaling for circuit establishment and monitoring. Unlike ISDN, IDSL has no call set-up sequence and will be positioned by the service providers as a flat rate service, rather than usage based.

ISDN and IDSL Network Deployments

IDSL is a data-only access service, offering a speed of 144 kbps (kilobits per second). With compression it is possible to achieve throughputs of up to 900kbps over a single connection.

IDSL is very well positioned as a base-level DSL service. Using IDSL the benefits of DSL are available to all customers, ensuring remote users and businesses can take advantage of new applications enabled by always-on technology.

IDSL Availability

Company Name:
Main Contact:
Address:
City:
State:
Zip Code:
Voice Phone:
Fax Phone:
Phone line to be tested:
Email:
Questions or Comments:

Freese-Notis Global Internet is a division of Freese-Notis Weather