Cisco IP Telephony Troubleshooting Guide for Cisco CallManager Release 3.0(1)

Glossary of Terms

Following are some common terms and acronyms that may be used in this document.

Glossary

Acronym/Term

.cnf

µ-law (“mu-law”)

A-law

ACF

ANI

ARQ

B-Channel

Calling Search Space

CCAPi

CCO

CDR

Cisco IOS

Cluster

CMR

codec

D-Channel

DCF

DHCP

DN

Definition

Configuration file used by devices.

Companding technique commonly used in North America. µ-law is standardized as a 64-kbps codec in ITU-T G.711.

ITU-T companding standard used in the conversion between analog and digital signals in PCM systems. A-law is used primarily in European telephone networks and is similar to the North American µ-law standard.

Admission Confirm.

The calling number

Admission Request.

Bearer channel. In ISDN, a full-duplex, 64-kbps channel used to send user data.

The Calling Search Space defines what directory numbers and route patterns a given device can call. It is a grouping of partitions to look through when making a call. For example, assume there are several Partitions in a Calling Search Space named “Executive.” If a

Cisco IP Phone number is in the “Executive” Calling Search Space, then when initiating a call, it looks for the example “NYInternationalCall,” “NYLongDistance,” “NYLocalCall,” and “NY911” Partitions available to search through. A Cisco IP Phone number that has a “Guest” Calling Search Space, for example, might only be allowed to search through “NYLocalCall” and “NY911” Partitions, so that if the user tries to dial an international number, it won’t find a match and the call can’t be routed.

Call Control API. Used by Cisco IOS to handle VoIP call processing.

Cisco Connection Online (http://www.cisco.com). Provides the latest information on Cisco products, technical support information, and technical documentation.

Call Detail Record. Information about call origination, destination, and duration, used to create billing records.

Cisco system software that provides common functionality, scalability, and security for all products under the CiscoFusion architecture. Cisco IOS allows centralized, integrated, and automated installation and management of internetworks, while ensuring support for a wide variety of protocols, media, services, and platforms.

Cisco CallManager cluster. A logical grouping of several Cisco CallManager servers.

Call Management Records, also known as Diagnostic CDRs. Records that contain the count of bytes sent, packets sent, jitter, latency, dropped packets, and so on.

Coder-Decoder. A DSP software algorithm used to compress/decompress speech or audio signals.

Data channel. Full-duplex, 16-kbps (BRI) or 64-kbps (PRI) ISDN channel. Used for signaling and control.

Disengage Confirm.

Dynamic Host Configuration Protocol. Provides a mechanism for allocating IP addresses dynamically so that addresses can be reused when hosts no longer need them.

Directory Number. This is the phone number of an end device. It can be a number assigned to a Cisco IP Phone, a Cisco IP SoftPhone, fax

© 2000 Cisco Systems, Inc.

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Cisco Systems 30 VIP Acronym/Term Cnf Law mu-law, Channel Calling Search Space CCAPi, Cisco IOS Cluster, Codec Channel
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30 VIP specifications

Cisco Systems has been a leading company in networking technology, and its suite of products is continually evolving to meet the demands of modern digital infrastructure. One of the latest introductions is the Cisco Systems 30 VIP, a highly advanced solution designed to enhance network performance and security for businesses of all sizes.

The Cisco Systems 30 VIP stands as a cornerstone for next-generation networking features, providing organizations with significant advantages in speed, reliability, and scalability. At the heart of the 30 VIP are key technologies such as advanced routing protocols and enhanced security measures that ensure seamless data transfer across multiple devices.

Main features of the Cisco Systems 30 VIP include its high throughput capabilities, which support accelerated data processing and lower latency. This is crucial for businesses that rely on real-time data exchange and cloud applications. Additionally, the device incorporates Multi-Protocol Label Switching (MPLS) technology, which optimizes data flow between networks and significantly enhances overall performance.

Another notable characteristic of the 30 VIP is its integrated security features, including advanced threat detection and prevention systems. These are designed to protect sensitive business data from cyber threats, ensuring operational continuity and compliance with industry regulations. The Cisco 30 VIP also supports secure access protocols, allowing for secure remote connections, which is increasingly vital in today’s hybrid work environment.

The adaptability of the Cisco Systems 30 VIP is another of its standout aspects. It offers compatibility with existing Cisco infrastructure, making it easier for businesses to adopt new technologies without overhauling their entire system. This modular approach allows for easy upgrades and integration of future technologies, ensuring long-term viability and investment protection.

Furthermore, the Cisco Systems 30 VIP is powered by intelligent network management software that simplifies monitoring, configuration, and troubleshooting processes. This software enhances network visibility, allowing administrators to identify and address potential issues proactively, thereby reducing downtime and enhancing user experience.

In summary, the Cisco Systems 30 VIP represents a significant advancement in network technology with its high throughput, integrated security features, adaptability, and intelligent management capabilities. These elements combine to provide a robust solution that meets the evolving needs of modern businesses while ensuring secure and efficient operations. As organizations continue to navigate an increasingly complex digital landscape, the Cisco Systems 30 VIP offers a future-proof option designed to facilitate growth and resilience.
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