1-4 CHAPTER 1: INTRODUCTION

Data Capabilities

The 3Com Impact digital modem allows transmission of asynchronous data at speeds of up to 115.2 Kbps over digital ISDN connections with the highest reliability and error-free performance possible. With Multilink PPP, a digital connection of up to 128 Kbps can be established by aggregating the two 56 Kbps or 64 Kbps ISDN B channels. Note that the COM port speed of your PC limits the maximum data transmission rate to no more than 115.2 Kbps.

ISDN technology reduces call setup times by more than 50% compared to V. fast/V.34 analog modem setup times, reducing the time it takes to establish a connection to under three seconds.

This high-speed performance allows you to do the following:

Dial up the Internet at high data rates

Access your office’s LAN

Access and download graphics, software, and data files more quickly

Voice Capabilities

The 3Com Impact digital modem’s Phone Out port allows the use of existing analog telephone equipment (touch-tone telephones, cordless telephones, and fax and answering machines) to place and receive calls over the ISDN line. When you connect to another ISDN line, setup times are reduced, and voice quality is excellent.

Simultaneous Data and Voice Capabilities

The 3Com Impact digital modem quickly processes data and voice calls simultaneously. For example, you can send a fax or place a voice telephone call while maintaining a high-speed connection to the office LAN; you can also receive a voice telephone call while you are connected to the Internet.

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3Com DIGITAL MODEM manual Data Capabilities, Simultaneous Data and Voice Capabilities

DIGITAL MODEM specifications

The 3Com Digital Modem represents a significant advancement in communication technology, designed to enhance data transmission over telephone lines. This modem is a part of a lineage of 3Com products that focus on delivering robust networking solutions, tailored for both personal and professional use.

One of the main features of the 3Com Digital Modem is its high-speed data transfer capabilities. With speeds reaching up to 56 Kbps, it allows users to send and receive large amounts of data quickly, which is essential for applications that require efficient data exchange. This speed ensures smoother internet browsing, quicker downloads, and more reliable connections for applications such as video conferencing and online gaming.

The modem is equipped with advanced error correction technologies, including V.42 and V.42bis protocols. These protocols help to maintain data integrity by detecting and correcting errors during transmission. This results in a more reliable connection, reducing the likelihood of dropped calls or corrupted data transfers, which can be particularly frustrating for users engaged in critical business communications.

Another notable characteristic of the 3Com Digital Modem is its compatibility with various operating systems, making it versatile for different users. It supports Windows, Mac, and various other platforms, ensuring that it can be integrated seamlessly into existing systems without the need for extensive configuration. This plug-and-play capability simplifies installation for users, allowing them to get connected quickly and efficiently.

The modem also incorporates an innovative design that facilitates improved heat dissipation, ensuring optimal performance during prolonged use. Its compact form factor makes it suitable for both home and office environments, allowing for easy setup without consuming excessive desk space.

In addition to these features, the 3Com Digital Modem boasts strong security protocols, ensuring that users' data is protected against unauthorized access while being transmitted. This is particularly important in today’s digital landscape, where data breaches and cyber threats are prevalent.

Overall, the 3Com Digital Modem combines speed, reliability, and security, making it a valuable asset for anyone looking to enhance their connectivity experience. Its robust feature set and user-friendly design cater to a broad audience, from casual users to business professionals, reflecting the evolution of modem technology in a digital-first world.