Cisco Cisco IOS Software Release 12.4(2)XB6

A mix of ASFX-FC voice feature cards and NextPort dial feature cards (NP DFCs) is not supported. 
If the AS5X-FC voice feature card is installed in a Cisco AS5350XM universal gateway with an NP 
DFC running, you must reboot the system to support the ASFX-FC voice feature card, and the NP 
DFC will be powered down. That is, if the AS5X-FC card is present during bootup, dial-only and 
universal port cards will not be operational. 

If no AS5X-FC voice feature card is installed during bootup, the gateway will support only 
dial-only or universal port cards. If you wish to use the AS5X-FC voice feature card, you must 
install the card and reboot the system.

The following message is displayed when an upgrade takes place if a version of DSPWare other than 
the recommended version is uploaded: 

WARNING: Recommended GSM AMR-NB supported DSPWare for this Cisco IOS image is X.Y.Z 

Where X.Y.Z changes depending on the Cisco IOS image that is used by the customer.

This warning has no impact on the firmware upgrade and calls can be brought up with a version of 
DSPWare that is not the recommended version.

Cisco IOS software images are subject to deferral. Cisco recommends that you view the deferral notices 
at the following location to determine if your software release is affected:

For general information about the types of documents listed in this section, see the following document: 

http://www.cisco.com/warp/customer/cc/general/bulletin/software/general/1654_pp.html

Field Notices—Cisco recommends that you view the field notices for this release to see if your 
software or hardware platforms are affected. If you have an account on Cisco.com, you can find field 
notices at 

. If you do not have a 

 login account, you can find field notices at 

Product Bulletins—If you have an account on Cisco.com, you can find product bulletins at 

. If you do not have a 

Cisco.com login account, you can find product bulletins at 

What’s Hot in Software Center—What’s Hot in Software Center provides information about caveats 
that are related to deferred software images. If you have an account on 

, you can access 

What’s Hot for IOS Releases at

or by logging in and 

selecting Technical Support > Software Center > Cisco IOS Software > What’s Hot in Software 
Center. 

What’s New for IOS — What’s New for IOS lists recently posted Cisco IOS software releases and 
software releases that have been removed from Cisco.com. If you have an account on Cisco.com, 
you can access What’s New for IOS at

 http://www.cisco.com/public/sw-center/index.shtml

or by 

logging into Cisco.com and selecting Technical Support > Software Center > Products and 
Downloads > Cisco IOS Software.