Configuration and Operation

will execute the action requested. A valid command with an invalid parameter will produce the ERROR result code. An invalid command will also produce the ERROR result code, and is ignored. In data mode, everything you type is passed as data without interpretation by the 8400B Plus Data Module, except the escape sequence. The escape sequence, described in later paragraphs, provides a way of switching the 8400B Plus Data Module back to command mode without disconnecting a data call.

Issuing Commands

The following paragraphs describe the elements of a command line and how the 8400B Plus Data Module responds to a command line when it is issued.

AT Command Line Prefix

All command lines issued to the 8400B Plus Data Module must begin with the letters AT or at with the exception of the A/ command, which is discussed later. The command line prefix must be entered as either both uppercase or both lowercase letters (that is, at and AT will work, but aT and At will not).

The letters AT, also known as the ATtention command, alerts the 8400B Plus Data Module to expect one or more commands to follow. The 8400B Plus Data Module examines the command line prefix to determine the communications rate of the terminal equipment as well as its parity setting. The 8400B Plus Data Module automatically adjusts the speed and parity settings and uses the setting until another AT command is received, or until the 8400B Plus Data Module is powered down.

Formats supported by the 8400B Plus Data Module are shown in Table 3-1.

3-2Issue 2 November 1996

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Avaya 8400B Plus manual Issuing Commands, AT Command Line Prefix

8400B Plus specifications

The Avaya 8400B Plus is a state-of-the-art digital communication system designed to cater to the diverse needs of modern organizations. Integrating advanced technologies and an array of features, this system enables seamless voice and data communication, enhancing productivity and collaboration in the workplace.

One of the key features of the Avaya 8400B Plus is its robust scalability. Organizations can easily expand the system as their needs grow, making it a versatile choice for enterprises of all sizes. The system supports up to 960 ports, allowing for extensive connectivity without compromising performance. This scalability is complemented by the ability to integrate with various third-party applications, providing a customized communication solution.

In terms of technology, the Avaya 8400B Plus is built on a hybrid architecture, supporting both traditional digital telephony and Voice over Internet Protocol (VoIP). This enables organizations to leverage their existing infrastructure while transitioning to more modern communication methods. The system is equipped with advanced digital signal processing capabilities, ensuring superior voice quality and reduced latency during calls.

Another significant characteristic of the Avaya 8400B Plus is its user-friendly interface. The system features a comprehensive management portal that simplifies configuration and administration tasks, making it accessible to IT personnel with varying levels of expertise. Additionally, the system offers rich call handling capabilities, including call routing, forwarding, and conferencing, enhancing the overall user experience.

Security is also a top priority in the design of the Avaya 8400B Plus. The system incorporates robust encryption protocols and security features that protect sensitive communications, safeguarding organizations against potential threats. It also provides audit and access control features, ensuring that only authorized personnel can manage the system.

Furthermore, the Avaya 8400B Plus is designed with reliability in mind. Its redundant power supplies and backup systems guarantee minimal downtime, boosting organizational productivity even in the event of system failures. The system's durability is a testament to Avaya’s commitment to delivering long-lasting communication solutions.

In summary, the Avaya 8400B Plus stands out for its scalability, hybrid technology, user-friendly interface, security features, and reliability. These attributes make it an ideal choice for businesses looking to enhance their communication capabilities and adapt to the ever-evolving landscape of digital interactions.