Update Asterisk 11 with rfc 3966

Hello everyone
i have a little nooby question, cause i`m only learning asterisk
how can i patch asterisk to support rfc 3966?
pathc is here issues.asterisk.org/view.php?id=18549
thnks anyway

Use the patch utility (“man patch”) with the appropriate patch file, against the Asterisk source tree and then follow the normal build from source process.