I have put together a HOWTO on my blog for building a portable mesh node with VOIP and wifi. We use this setup at church buildings to get on the mesh where we can't install any equipment long term. It uses VOIP so anyone who knows how to use a phone can use it. Great little kit and not too difficult to build.
http://www.trevorsbench.com/portable-mesh-node-with-voip-and-wifi/
Here is a picture of a finished node:
With tripod and radio:
Feedback and questions welcome.
-Chad
http://www.linphone.org/
*4710*197*30*18 - basically dialing by ip
vs
103 with a server. We dial by IP if the server is down.
for the Linphone dial string. So it takes only one or two button pushes to make the call, and there is no central server. Of course we need to have a telephone directory with each telephone.
Bob W8ERD