GUI Admin PW = 3157919

Go to admin menu and chose reset to factory defaults.
Wait until reboots, then go to admin again.
FIRST OF ALL check network settings on NetworkSetup page.
There is a field Network device name that must be set to eth0.2
And be sure to set Obtain DNS addresses automatically on.
Reboot your phone, than set it up using page VoipSetup
Basicaly uncheck everything exept Include direction send receive in SDP and set No Of SIP Routes to "0"
Then fill out first 4 fields with your parameters.
This should work.

For video settings go to SystemConfig, turn off Enable video privacy
Video bitrate = 512000
Transmitted video image size = VGA