Set VLAN ID on Aastra 6865i

1. Press Settings (gear icon)
2. Select Admin Menu (enter password 89558, or try 22222)
3. Select Network Settings
4. Select Ethernet & VLAN
5. Select VLAN Settings
6. Select VLAN, hit down to Enable, hit Set
7. Select LAN Port VLAN
8. Hit Enter on LAN Port VLAN ID
9. Enter VLAN ID

To disable VLAN, repeat steps 1 through 5, and hit down to Disable on step 6.