Any of you interested in a free trial of VOIPFone can use the link below. You get a free trial of the system and I get a little something if you decide to use it.
We use VOIPFone now for most of our installs. they offer the best combination of flexibility and features for us. Where events frequently use large numbers of lines then go dormant for the rest of the year we can park and manage numbers without issues. The system also works flawlessly with Freepbx and out own fork and the mobile app gives a level of redundancy if a site goes ofline.