Planning VoIP implementation on new 2960-24PC-L switches, using PoE for handsets. These switches will be dedicated VoIP network, no data. Because of physical wiring politics, would like to split pairs from existing Cat5e. From reading, it seems that modern 802.3af implementations use the data pairs for power, not requiring any spare pairs. Can anyone confirm that this is the case with the 2960-24PC-L? I would like to know if 2 pairs are enough for PoE here or whether we will need new drops.
Secondly, we will be using Polycom 501 handsets that seem to require special expensive "PoE cables" to work with many PoE switches and infusors. However, in some cases they work with standard patch cables, e.g. when using Foundry switches with loop detection mechanisms. Can anyone confirm whether the 2960-24PC-L switches would work without these special cables?