Cisco Cisco IOS Software Release 12.2(11)YV Notas de publicación

The following sections contain important notes about Cisco IOS-related issues that can apply to the 
Cisco ICS 7750. 

All of the MRPs and ASIs in a Cisco ICS 7750 must run the same Cisco IOS image.

Caveats describe unexpected behavior or defects in Cisco IOS software releases. Severity 1 caveats are 
the most serious caveats, severity 2 caveats are less serious, and severity 3 caveats are the least serious 
of these three severity levels. 

Caveats in Release 12.2 T are also in Release 12.2(11)YV. For information on caveats in Cisco IOS 
Release 12.2 T, refer to the 

document. For information on caveats 

in Cisco IOS Release 12.2, refer to the 

document. These documents 

list severity 1 and 2 caveats, and are located on CCO and the Documentation CD. 

If you have an account with Cisco.com, you can also use the Bug Toolkit to find select caveats of any 
severity. To reach the Bug Toolkit, log in to Cisco.com and click Technical Support: 
Tools & Utilities: Software Bug Toolkit. Another option is to go to 

http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl

.

This section describes unexpected behavior in Release 12.2(11)YV.

When a call to the PSTN is being made through MRP FXS and FXO interfaces on which the 
forward-digits all command has been entered, it is possible that the DTMF tones might be echoed back 
to the call originator, due to a suspected problem with the echo canceller.