DEFINITY Communications System

CHAPTER 3: FIRST TIME USERS

7400B Data Module

 

User’s Guide

Page 3-7

 

 

Another possible problem is that the remote end response contains normal words mixed in with strange characters, many of which are left brackets ([). This usually indicates that the remote device is sending ANSI display control sequences, and your terminal does not recognize them (ANSI stands for American National Standards Institute).

On a PC, this can generally be remedied by first disconnecting the call, editing the PC’s CONFIG.SYS file to include the line

DEVICE=ANSI.SYS

rebooting the PC, and then trying the call again. (For a log off procedure, see the alternative method under “Disconnecting a Data Call,” below.)

Note: If the terminal device is not a PC, or the suggested remedy does not seem to solve the problem, and then you will need to consult the documentation for your dedicated terminal, or for your PC and any software involved.

Disconnecting a Data Call Most remote systems will have a command or menu selection for logging off. When you select the appropriate means, the remote system will usually disconnect or hang up. The PBX will disconnect from the call and, after a moment, the data module will send the following message to your display:

NO CARRIER

Alternatively, you can use the following log off procedure:

Selection: +++

OK

The prompt Selection: is simply a representation of how the remote system might ask you for your next command or menu selection. Type the escape sequence (default is +++) but do not press [ Enter ].

When the data module responds with OK, type the command line:

ath [ Enter ]

The PBX will disconnect from the remote end device, and the 7400B will send the OK message to the terminal display.

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Lucent Technologies 7400B manual No Carrier, Selection +++

7400B specifications

The Lucent Technologies 7400B is a notable entry in the landscape of telecommunications and networking technology, showcasing an innovative blend of features and capabilities that cater to the evolving demands of modern communication systems. Released as part of the company's broader portfolio aimed at enhancing network efficiency and reliability, the 7400B addresses the needs of both voice and data transmission organized around high-performance protocols.

One of the main features of the Lucent Technologies 7400B is its advanced signal processing capabilities. The device is built to handle a significant amount of bandwidth, making it suitable for high-capacity environments where data traffic can fluctuate dynamically. With its ability to support various signaling protocols, the 7400B is adept at integrating with existing infrastructure while providing the flexibility required to adopt emerging technologies.

The 7400B employs state-of-the-art voice encoding and compression techniques that optimize the quality of voice communications. This technology ensures clarity and minimizes latency, which is crucial for enterprises relying heavily on voice-over-IP (VoIP) applications and unified communications. The system supports multiple codecs, enabling it to seamlessly manage both traditional telephony and next-generation voice services.

In terms of reliability, the Lucent 7400B features robust redundancy protocols, ensuring continuous service availability even in the face of potential hardware failures or unexpected disruptions. It also includes built-in diagnostic tools that facilitate rapid troubleshooting, allowing technicians to identify and resolve issues efficiently. This focus on reliability makes the 7400B a preferred choice for critical business applications where downtime can lead to significant productivity losses.

The integration of advanced networking technologies such as Quality of Service (QoS) further enhances the performance of the 7400B. This capability ensures that high-priority applications receive the necessary bandwidth, maintaining optimal performance levels regardless of overall network traffic loads.

Moreover, the Lucent Technologies 7400B is designed with scalability in mind. Organizations can start with a basic configuration and expand their capacity as needed, thus ensuring that their investment remains relevant as their communication demands grow. This scalability is complemented by a user-friendly management interface, allowing network administrators to configure and monitor the system with ease.

In summary, the Lucent Technologies 7400B stands out for its advanced signal processing, voice encoding capabilities, reliability features, and scalability. These characteristics make it a vital component for any organization looking to enhance their telecommunications infrastructure and meet the increasingly complex communication needs of today’s digital landscape.