Cisco Cisco IOS Software Release 12.2(11)YT

In—The number in the “In” column indicates the Cisco IOS release in which the feature was 
introduced. For example, “12.2(11)YT1” means a feature was introduced in Cisco IOS 
Release 12.2(11) YT2. If a cell in this column is empty, the feature was included in the initial base 
release.

These release notes are not cumulative and list only features that are new to Cisco IOS 
Release 12.2(11) YT1. The parent release for Cisco IOS Release 12.2(11) YT1 is Cisco IOS 
Release 12.2(11)T. For information about inherited features, refer to Cisco.com or Cisco Feature 
Navigator. For Cisco.com, go to 

, select the 

appropriate software release under Cisco IOS Software, and click Release Notes. If you have a 
Cisco.com login account, you can use the Cisco Feature Navigator tool at 

http://www.cisco.com/cgi-bin/Support/FeatureNav/FN.pl

.

Cisco IOS Telephony Service (ITS) Version 2.1

12.2(11)YT

N

Y

Y

Clear Channel T3/E3 with Integrated CSU/DSU

12.2(11)YT

Y

Y

Y

Content Engine Network Module for Caching 
and Content Delivery

12.2(11)YT

Y

Y

Y

H450.2 & H450.3 Support In Cisco IOS

12.2(11)YT

N

Y

Y

SRST: Survivable Remote Site Telephony 
Version 2.1

12.2(11)YT

N

Y

Y

Cisco IOS Telephony Service (ITS) Version 2.1

12.2(11)YT

N

Y

Y

Clear Channel T3/E3 with Integrated CSU/DSU

12.2(11)YT

Y

Y

Y

Content Engine Network Module for Caching 
and Content Delivery

12.2(11)YT

Y

Y

Y

Gigabit Ethernet Network Module

12.2(11)YT

Y

Y

Y

H450.2 & H450.3 Support In Cisco IOS

12.2(11)YT

N

Y

Y

SRST: Survivable Remote Site Telephony 
Version 2.1

12.2(11)YT

N

Y

Y