Catalyst 2950 vs. 3560 for VoIP

[jneiberger]

Other than not being capable of PoE, is the Catalyst 2950 missing anything that a PoE-capable 3560 can provide with regard to Cisco IP telephony? We're considering a Cisco IPT deployment and most of our sites already have 2950 switches. I believe that the 2950 is capable of the QoS necessary for high-quality VoIP, it just can't supply the power. I'm considering using PowerDsine power injectors and leaving the 2950s in place.

[At brand new sites, we'd probably just buy a PoE switch right from the beginning.]

Any thoughts? Does the 3560 have some functionality that we would wish we had if we kept the 2950s?

Thanks,
John