ADTRAN ISU 128 user manual Appendix B Current Status Messages, Disconnecting

Models: ISU 128

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Appendix B

Current Status Messages

This appendix lists the status line messages and their definitions. Messages shown entirely in capital letters are generated by the ISDN network. Messages with lower case letters are generated by the ISU 128.

AT&T-5ESS Ready

The ISU 128 is connected to an AT&T 5ESS switch and is ready to place/re- ceive calls.

Call Connect B1

Bearer channel 1 has been connected and is now active.

Call Connect B2

Bearer channel 2 has been connected and is now active.

CALL xxxxxxx

The ISU 128 is calling phone number xxxxxxx.

DISCONNECTING

The current phone call is being disconnected (hung up).

DMS-100 Ready

The ISU is connected to a DMS-100 switch and is ready to place/receive calls.

Getting TEI #1

The ISU is receiving its first TEI from the network.

Getting TEI #2

The ISU is receiving its second TEI from the network.

ISDN-1 Ready

The ISU 128 is connected to an ISDN-1 compliant switch and is ready to place/ receive calls.

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ISU 128 User Manual

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ADTRAN ISU 128 user manual Appendix B Current Status Messages, Disconnecting

ISU 128 specifications

The ADTRAN ISU 128 is a versatile and robust integrated service unit designed for network access solutions, particularly within telecommunications and enterprise environments. This unit plays a critical role in enabling high-speed data transmission, supporting various voice, video, and data services over traditional and next-generation networks.

One of the noteworthy features of the ADTRAN ISU 128 is its ability to aggregate multiple digital circuits into a single access point. It supports T1, E1, and fractional T1/E1 interfaces, making it a flexible choice for customers with different bandwidth needs. The unit allows for seamless migration from legacy systems to modern broadband services, ensuring that businesses can scale their operations without significant infrastructure changes.

The ADTRAN ISU 128 also excels in its support for various protocols, including Frame Relay and ATM, providing the necessary flexibility to adapt to different network architectures. This adaptability is essential for businesses that rely on diverse communication platforms to maintain connectivity and operational efficiency.

Another significant aspect of the ISU 128 is its built-in features for diagnostics and monitoring. The unit includes comprehensive loopback and performance monitoring capabilities, which enable network administrators to troubleshoot potential issues proactively. This functionality ensures a reliable connection and minimizes downtime, which is critical for maintaining service-level agreements (SLAs).

In terms of user interface, the ADTRAN ISU 128 is designed with ease of use in mind. The unit can be configured and managed through a web-based graphical user interface, allowing for straightforward remote access to settings and performance metrics. This capability facilitates quick adjustments and upgrades, helping to streamline network management tasks.

The ISU 128 is also built with a strong emphasis on reliability and durability. It is housed in a compact, rack-mountable design, making it suitable for various deployment environments. These characteristics, combined with support for redundant power supplies, enhance the unit's reliability in critical operations.

Overall, the ADTRAN ISU 128 stands out as a powerful solution for organizations seeking to optimize their network access. With its advanced features, compatibility with multiple technologies, and emphasis on reliability, the ISU 128 is an ideal choice for those looking to enhance their communication infrastructure in a rapidly evolving digital landscape.