Cannot Install Asterisk-Addons With Asterisk 1.8 and Newer

Issue:

Attempting to install the Asterisk-addons 1.6.2.4 package when Asterisk 1.8 or newer is installed results in a compile error, starting in file chan_ooh323.h. 

Solution:

As of Asterisk 1.8, the Asterisk-addons bundle has been merged into the source tree and is no longer a separate package. Asterisk-addons can be found using the menuselect tool (make menuselect) under the section "Asterisk addons".