Yealink T23PThe T23G without the gigabit chip.

Why the T23P is on the catalog.

The T23P is a legitimately confusing SKU because it overlaps almost completely with the T23G — same body, same screen, same six programmable keys, same Opus codec. The only meaningful difference is ethernet speed: 10/100 here instead of gigabit. Yealink kept it in the catalog for budget-constrained bulk deployments where every $10 multiplied across 100 desks matters more than the daisy-chain throughput.

Where it makes sense: pure-phone deployments with no PCs daisy-chained through the phone, or sites where the building is wired with 100M unmanaged switches that would throttle a gigabit phone anyway. Call centers with thin clients on a separate VLAN are the textbook fit — the phone never sees PC traffic, the gigabit chip would be wasted.

Where to skip it: any office where users plug their workstations into the back of the phone. In that case the 100M port becomes a real bottleneck on file transfers, video calls, and anything else the PC actually needs the network for. Spend the $10 and get the T23G instead.