B-8 APPENDIX B: AT COMMANDS, REGISTERS, AND RESULT CODES

Table B-3 Remote S Registers (continued)

Registers

Descriptions

 

 

S58

Terminal Initialization State:

 

Indicates the status of the second TEI using SPID 2. This

 

information is provided only if your carrier requires a second

 

directory number. This field is read-only.

 

0

— 3Com Impact digital modem has not attempted

 

initialization

 

1 — 3Com Impact digital modem has initialized successfully

 

using SPID 2

 

2

— 3Com Impact digital modem has failed initialization

 

using SPID 2

S59

U Interface Status:

 

This field is read-only.

 

0

— U interface is not synchronized with the switch

 

1

— U interface is synchronized and ready

S60

B Channel Data Rate:

 

56 — 56 Kbps (default)

 

64 — 64 Kbps

S61

Outgoing Call Type:

 

0

— Follow dial modifiers (default)

 

2

— ISDN

 

3

— Internal analog fax modem

S63 (only for models with

Incoming Voice Call Routing (bit map)

an internal fax modem)

Bit Position/Feature:

 

 

0

— Phone #1 internal analog fax modem

 

1

— Phone #1 Phone Out port

 

2

— Phone #2 internal analog fax modem

 

3

— Phone #2 Phone Out port

S65

Voice Automatic Number Identification:

 

Displays the phone number of an incoming voice call. This

 

field is read-only.

S66

Data Automatic Number Identification:

 

Displays the phone number of an incoming data call. This

 

field is read-only.

(continued)

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3Com DIGITAL MODEM manual Isdn

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.