VoIP Security for Networking (Documentation)

[jaderampulla]

Does anyone know if there is an Avaya document that details best practices for securing data networks for VoIP? I hate to post about Cisco on here, but I'm looking for some kind of Avaya flavored version of this:

http://www.amazon.com/Securing-Telephony-Networks-Networking-Technology/dp/1587142953/