Asterisk 1.4 and above supports video calls using h264, h263p, h263 and h261 as a bit rate of 384 kb/s.
To enable Asterisk video support in FreePBX:
1. Login to your server at http://<your-server>/admin
2. Click on ‘Tools’ then ‘Asterisk SIP Settings’
3. Click the ‘Enabled’ check box next to Video Support then check “h264”, “h263p”, “h263” and “h261”
4. Click ‘Apply’ to save the settings.
You can now use soft phone applications such as CouterPath’s free ‘X-Lite‘ application to make video calls to other Asterisk extensions.