Hi,
voice VLANs are only needed, if you connect phones that itself provide connectors for PCs - hence you would connect a combination of a PC and a phone to one switch port.
But since you say that only IP phones will be connected you can use a standard VLAN instead of a voice VLAN.
They have said that the Voice VLAN needs to be on ID 2 to be able to obtain DHCP addresses from the router.
I interprete this statement to mean that Ethernet frames entering/leaving your router's port 2 have to be tagged with VID 2.
Hence, I'd suggest you configure your switch as follows:
- Add a new VLAN with VID=2.
- Ports 1-22: Set them to be untagged members of VLAN 2, set their PVID=2.
- Port 24: Set it to be a tagged member of VLAN 2, leave its PVID at its default value (1).
See this
manual, page 32, chapters "VLAN > 802.1Q VLAN" and "VLAN > 802.1Q VLAN PVID".
PT