Cisco IOS® Software release 11.3(3)T and 11.3(3a)T images for the Cisco 2600 series are being replaced with release 11.3(3a)T1 with the following features and fixes:
Fixes in 11.3(3a)T
The Cisco Voice-Over-IP MIB added call progress tones for several countries (CSCdj85241 (registered customers only) ). This MIB update is required for Cisco 2600 and 3600 series Voice-Over-IP routers to be managed by Cisco Voice Manager.
Encryption images are now released for the Cisco 2600 series.
Fixes in 11.3(3a)T1
The Cisco 2600 Series may not boot when there is 20MB of DRAM in the system (CSCdk09450 (registered customers only) ).
The WIC-1B-U may not be recognized in the Cisco 2600 series. During power-on of the Cisco 2600 Series, the WIC-1B-U EEPROM may get reprogrammed. This results in the system not being able to recognize the WIC-1B-U. Cisco IOS version 11.3(3a)T1 has a fix (CSCdk08441 (registered customers only) ) that will prevent this problem. However once a WIC-1B-U has been reprogrammed, it must be replaced.
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods: