Integrated Services Digital Network (ISDN) offers security, speed, digital clarity, flexibility and business voice services that might not be available over conventional Plain Old Telephone Service (POTS) lines. In the past, most of the emphasis on ISDN has been on the two circuit-switched B channels that can be combined to provide uncompressed data speeds of up to 128 Kbps. An equally important asset, however, is the packet-switched D channel included with each ISDN Basic Rate Interface (BRI) line. The D channel is the key to the low-cost continuous connectivity offered by AODI.

When traffic increases, the connection is automatically switched to one or both B channels for retrieving e-mail attachments, accessing the Internet, downloading files from servers or performing other tasks that require high bandwidth. When the traffic subsides, ending the B-channel connection triggers an automatic reversion to the D-channel link. Teleworkers get a low-cost continuous LAN-style connection that leaves B channels free for other calls. And employers don't have to sacrifice valuable circuit-switched ports on their networks to keep users continuously connected.

Features:

• There is no need to constantly dial in to the network.
• User can remain logged on to the D channel to receive and send e-mail.
• Low-cost continuous LAN-style connection leaves B channels free for other calls.
• Product provides uncompressed data speeds of up to 128 Kbps.
• Connection automatically switches to one or both B channels for performing high-bandwidth tasks.
• Users can switch to one or both B channels manually.
• When high-bandwidth traffic subsides, ending the B-channel connection triggers an automatic reversion to the D-channel link.

Benefits:

• Reduces costs by lowering the ISDN usage rate on the employee's line (by using the D channel for continuous data connectivity at a substantially reduced rate).
• Streamlines operations by reducing the number of dial-in ports required on the corporate network.
• Increases efficiency by providing teleworkers with access that rivals the LAN-based convenience enjoyed by office-bound colleagues.
• Increases productivity by eliminating downtime associated with constantly dialing in to the network.
• Improves responsiveness by immediately notifying employees when they have received e-mail.
• Maximizes network resources by providing continuous connections that stay up even while the ISDN line is otherwise occupied — such as during simultaneous faxing and phone calls.
• Improves communications because colleagues and clients are more likely to take advantage of efficient e-mail communication when they know that employees will receive messages promptly.
• Makes the most of network resources by adding or dropping channels according to demand (bandwidth-on-demand).

Sample Applications:

• Feature-rich, real-time e-mail
• Advanced telecommuting
• Intranets, extranets, internetworking
• Internet access

Back to Top