Tài liệu PBX Networking Standard Telephony pdf

Designing Voice over Data—PBX Integration with Data Networks Copyright © 1999, Cisco Systems, Inc. 2-1

www.cisco.com © 2000, Cisco Systems, Inc. Networking - 791-1

PBX Networking

Standard Telephony

Designing Voice over Data—PBX Integration with Data Networks Copyright © 1999, Cisco Systems, Inc. 2-2

Networking - 791-2 Designing Voice over Data —PBX Integration with Data Networks www.cisco.com © 2000, Cisco Systems, Inc.

Module Objectives

Upon completion of this chapter, you will be able to:

• Describe typical PBX network applications

• Identify the types of signaling used in PBX networks

• Define the proprietary PBX protocols from Lucent & Nortel

• Identify design issues related with integrating PBX traffic over

data networks for both Lucent and Nortel PBXs

Upon completion of this chapter, you will be able to:

• Describe typical PBX network applications

• Identify the types of signaling used in PBX networks

• Define the proprietary PBX protocols from Lucent & Nortel

• Identify design issues related with integrating PBX-traffic over data

networks for both Lucent and Nortel PBXs

Designing Voice over Data—PBX Integration with Data Networks Copyright © 1999, Cisco Systems, Inc. 2-3

Networking - 791-3 Designing Voice over Data —PBX Integration with Data Networks www.cisco.com © 2000, Cisco Systems, Inc.

Module Content

I. PBX Review

II. PBX Signaling

A. Analog

B. Digital

III. General Design Implications

More specifically, this module focuses on a review of PBX.

Designing Voice over Data—PBX Integration with Data Networks Copyright © 1999, Cisco Systems, Inc. 2-4

Networking - 791-4 Designing Voice over Data —PBX Integration with Data Networks www.cisco.com © 2000, Cisco Systems, Inc.

PBX Benefits

• Allows many phones in an office to share fewer

number of “outside lines,” controlling cost growth

• Supports features

– Short-number extensions

– Conferencing

– Forwarding

– Security restrictions

– Lowest cost and other policy-based routing

– Manipulation of outgoing and incoming digits

– Park, etc.

• Provides for sophisticated selection of route, i.e.,

saves on toll costs

• Provides detailed use records

There are many benefits of PBX.

•It allows many phones in an office to share a fewer number of

outside lines, which helps to control cost growth.

•It supports many different features, including:

• Short-numbering extensions

• Conferencing

• Forwarding

• Security restrictions

• Lowest cost and other policy-based routing

• Manipulation of outgoing and incoming digits

• Park, etc.

•It provides for sophisticated selection of route, i.e., it saves on toll

costs

•It provides detailed use records