IP telephone

[oldefortran]

What tools are there if I want to set up my own IP telephone system? I want to run my own server and let friends connect to it.

[massimo]

Asterisk
_________________
Hello 911? How are you?

[redwood]

There are several opensource pbx systems available:

• asterisk -- most popular, works with FreePBX (php web app). Easiest to get up and running with a dialplan.
  
• callweaver (formerly openpbx an asterisk-1.2 fork) Conversion of asterisk-1.2 dialplans is reasonably
  straight forward. But newer -1.4 and -1.6 features not available.
  see http://www.voip-info.org/wiki/view/OpenPBX.org%20FAQ
  
• freeswitch -- beta status, modular design, can handle 10X as many simultaneous calls as asterisk.
  Uses an xml-based dialplan which is not compatible with asterisk dialplans.
  No gui configurator yet. FreePBX might eventually add freeswitch support. TCAPI is still pre-alpha.
  
• bayonne
  
• yate
  

[Diego Viola]

FreeSWITCH, the best.

http://www.freeswitch.org/

[Diego Viola]

"How does FreeSWITCH compare to Asterisk?"

http://www.freeswitch.org/node/117

[Diego Viola]

FreePBX v3 have merged with TCAPI and will have FreeSWITCH support.

http://www.freepbx.org/v3