T42G VLAN settings for PC VLAN

[Uwe]

Yes,
the phone is connected at the Internet port to the switch, and the PC is connected to the PC port.

In the routing switch is ip helper configured, one config for each VLAN. when i set one port on the switch to VLAN 31 untagged and another port to VLAN 41 untagged and then I connect there devices, they get ip-addresses from the VLAN, e. g. 10.110.31.xxx and 10.110.41.xxx

But I don't know how to set the switch and the phone to do this. When it was not a yealink phone but a small manageble switch the I had to set VLAN 31 tagged and VLAN 41 untagged to this port, the switch would get 10.110.41.xxx as its address and I had to configure another port from the small switch as VLAN 31 untagged and the the device at this port would get 10.110.31.xxx as its address.

How can I make this work with the T42G? The T42G should get an IP address from thge VLAN 41 and the PC should get an IP address from VLAN 31.