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Cisco IOS Software Releases 12.1 Special and Early Deployments

Cisco IOS Software Release 12.1(5)YC

Document ID: 20326




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Description of the Release

 

X Release:
Cisco IOS Software® Release 12.1(5)YC is a specific technology early deployment release (STED) optimized for 811/813/8020/soho70 platforms support.

This release is based upon Cisco IOS Software Release 12.1(5)T. The initial release, 12.1(5)YC introduces support for all features in the 12.1(5)T software release.

Product and Feature Support

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

The Cisco IOS Software Release 12.1(5)YC will support the following platforms:

c800-y6-mw  c800-y6-mw 
c800-sy6-mw      IP PLUS 
c800-nsy6-mw  IP/IPX PLUS 
c800 -oy6-mw   IP/Firewall 
c800-k8osy6-mw  c800-k8osy6-mw 
c800-k8nosy6-mw  IP/IPX/Firewall/IPSec PLUS
c800-k9osy6-mw  IP/Firewall/IPSec3DES PLUS
c800-k9nosy6-mw   IP/IPX/Firewall/IPSec 3DES PLUS 
c820-y6-mz    IP 
c820-k8osy6-mz  IP/Firewall/IPsec PLUS
c820-k9osy6-mz  IP//Firewall/IPSec 3DESPLUS
c820-k9nosy6-mz IP/IPX/Firewall/IPsec 3DESPLUS 
c820-v6y6-mz IP (Voice + Data)
c820-nsv6y6-mz IP/IPX PLUS ( Voice + Data)
c820-k8osv6y6-mz IP/Voice Firewall/ IPsec PLUS
c820-k9nosv6y6-mz IP/IPX Voice Firewall/Ipsec 3DES PLUS
soho70-y1-mz soho  IP image

Feature Descriptions are as follows:

  • Calling between ports
  • Redial
  • Local Call Transfer 
  • Volume adjustment 
  • Distinctive Ringing based on Caller ID
  • Sub Addresses for the phoneports
  • Silent Fax Calls Fax 
  •  Support for PIAFS. 
Note: The features delivered with this XED release will be immediately incorporated into Cisco IOS Software Release12.1T and subsequent Cisco IOS 12.2 releases. 

Support Pages

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

For more information, consult the following web pages: 

Release Documentation

Parent Release Documentation Other Links
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  • Cisco IOS Field Notices
  • Cisco IOS Reference Guide
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Target Market

 
Cisco Systems, Inc. released Cisco IOS Software Release 12.1(5)YC as a short-lived release for the Cisco 811/813/8020/soho70 platforms. It is targeted for the Service Provider market. 

Lifecycle of Release

 
Cisco IOS Reference Guide
 
Milestones Y2K Compliance Release Designation
CCO FCS: March 12, 2001

MFG FCS: 

EOS: 

EOE:

EOL:

Yes XED Release
Maintenance Releases The migration path for Cisco IOS Software Release 12.1(5)YC will be 12.2(3)T.

CCO registered customers can view the Projected Release Dates for Cisco IOS Software Product Bulletin

It is highly recommended that Release Notes are used to determine if a maintenance release should be used. Release Notes provide announcements of new features and a summary of known caveats at the time of the renumber. 

Maintenance Cycle: Download
Image
Cisco IOS Software Release 12.1(5)YC
No maintenance plans for an X release.
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Interim Builds Short-lived X releases do not provide interim builds. 

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Recommended Customer Migration Path

The migration path for Cisco IOS Software Release 12.1(5)YC will be 12.2(3)T.

To view the projected release date of Cisco IOS Software Release 12.1(5)YC see:
Projected Release Dates for Cisco IOS Software Product Bulletin



Updated: Feb 19, 2003 Document ID: 20326