Need help on VOICE IOS

[esa786_2]

Dear Seniors and Friends, I want to know what are the New Voice and Telephony Features added to each IOS version from 12.0 TO 12.4. PLS send me the link where can find it. I searched on cisco site but i am getting IOS VERSION but i am able to get above points. pls help me.

Thank you

[smahbub]

Try the release notes.

IOS Software Releases 12.4 T Release Notes:

http://www.cisco.com/en/US/products/ps6441/prod_release_notes_list.html