Just found a relatively recent review of my book Switching to VoIP over at O’Reilly’s web site. The author of the review was very kind:

Submitted by Dave Rowtree

This is pretty much essential reading for our new staff over in the UK. It first gives a good overview of VoIP in general for home and business, then develops how to use Linux as a PBX. It also covers in detail how to replace the voice circuit and call signaling to VoIP.

There are a few chapters on potential troubles with a troubleshooting guide (the most referenced pages in our copy!)

The references are slightly out of date, although this is more an indication of the fast moving nature of the business. IT includes the usual suspects of Skype, MSN and iChat, although no mention of GoogleTalk.

Throughout the book it stresses conversations are part of what humans do to feel human, and how we communicate can be transferred to VoIP principles

-Tom Payne, Maintel – Phone system maintenance & installation (http://www.maintel.co.uk/)