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Cisco IOS Software Releases 12.0 Special and Early Deployments

Cisco IOS Software Release 12.0(4)XL

Document ID: 20299


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Early Deployment (ED) Release Summary



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Description

Cisco IOS® Software Release 12.0(4)XL is a short-lived ED release. This release is focused on delivering high density voice over IP (VoIP) applications on the Cisco AS5800. The VoIP function gives the Cisco AS5800 the ability to be an H.323 Gateway (Public Switched Telephone Network (PSTN) to VoIP). It will support up to a T3's worth of voice calls over four Voice Feature Cards (672 for T3, and 720 for two E1 cards). Traditional Cisco AS5800 modem and ISDN data features will continue to be supported in mixed voice/data mode.

VoIP on the Cisco AS5800 has the following primary applications:

  • Two-stage dial toll bypass
  • PSTN voice traffic and fax traffic offload
  • Universally accessible voice mail and fax mail services
For more information, see the following pages:

Target Market

Cisco Systems, Inc. released Cisco IOS Software Release 12.0(4)XL as a short-lived ED release for the Cisco AS5800.

Product Support

Cisco IOS Software Release 12.0(4)XL supports the Cisco AS5800 platform.

Related Cisco IOS Releases

The short-lived ED releases are based on Cisco IOS Software Release 12.0T and do not provide synchronized maintenance releases.

Product/Feature Integration

Short-lived ED or X releases introduce specific features or new platforms to the marketplace prior to their integration into a major Cisco IOS Software technology release. Cisco IOS ED releases are based on Cisco IOS Software Release 12.0T. For more information, see the following pages:

Maintenance Releases

Cisco IOS Software Release 12.0(4)XL is a short-lived release and does not provide maintenance releases. If needed, critical bug fixes will be provided in software rebuilds which will use the following naming convention: Cisco IOS Software Release 12.0(4)XL1, 12.0(4)XL2, and so on.

Interim Builds

Cisco IOS Software Release 12.0(4)XL will provide interim builds.

Interim builds are not recommended and are not fully tested. Customers will only be provided with interim builds when a critical defect renders the maintenance release unusable. [an error occurred while processing this directive]

Maintenance Release Synchronization Points

Cisco IOS Software short-lived ED or X releases do not provide scheduled maintenance releases.
Pulled From Merging To
Cisco IOS Software Release 12.0(4)T Cisco IOS Software Release 12.0(6)T
For more information, see the Projected Release Dates for Cisco IOS Software Product Bulletin.

Recommended Migration

Features of Cisco IOS 12.0(4)XL will be ported to Cisco IOS 12.0(4)XH. [an error occurred while processing this directive]

The migration path is the logical superceding software. The uniqueness of each network requires that customers verify support for hardware, features, and protocols prior to a massive network upgrade. For more information, see the Projected Release Dates for Cisco IOS Software Software Bulletin.

Year 2000 (Y2K) Compliant

Cisco IOS Software Release 12.0(4)XL is Y2K compliant.

General Deployment (GD) Plan

Cisco IOS Software Release 12.0(4)XL is not targeted for GD certification.

Life Cycle

Cisco IOS Software Release 12.0(4)XL is an ED release offering new features, platforms, or interface support. It has a short engineering life span with a migration path to Cisco IOS Software Release 12.0(6)T.

Comments

For more information, see the following pages:

Support Pages:

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Updated: Feb 17, 2003 Document ID: 20299