Several MACs on the switch port. How to set up a wlan?

Question

Computer networks

There is a simple network on 30 computers. 10 IP phones. You need to make a VLAN. I add VLAN 100 for a PC to a port, say 28. But then the phone falls off, because The PC is not connected directly to the switch, but through an IP phone. How to configure VLANs when you have multiple devices on a port?
PS: And what to read to understand the Wealans well? SDSM has already been completed.

Answer 1

in the switches, look at the voice vlan account,
or just a port in the trunk with the phone's vlan in tagged, and the computer's vlan in untagged.
But you need to check the config of the phone itself, so that it understands that it will receive tagged traffic.
or look at the mac based vlan in the switch, when traffic from a specific mac (phone for example) will always go to the desired vlan

Answer 2

And what, exactly? Port on the switch to trunk mode, or hybrid mode, for ip-phone tagged vlan, for pc untagged
There is not much difference how the pc is connected, the phone just creates a bridge.