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There are several methods of getting Asterisk: via the Subversion code repository, via wget from the downloads site, or via a package-management system such as apt-get or yum. We’re only going to cover the first two methods, since we’re interested in building the latest version of Asterisk from source. Typically, package-management systems will have versions that are older than those available from Subversion or the downloads site, and we want to make sure we have the most recent fixes available to us, so we tend to avoid them.
Tip:
The official packages from Digium do tend to stay up to date. There are currently packages for CentOS/RHEL available at http://www.asterisk.org/downloads/yum.