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[Equipment] VVX 400, 802.3af and Cisco 3750G POE?

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Any reason that combo shouldn't work? I suspect some ding-dong did some bad cabling, but anyone have that combo of switch and phone running? An older Polycom Soundpoint conference unit is working fine, the VVXs not powering up, and the cisco not seeing and CDP or LLDP traffic on the ports. 3750G POE version does standards-based 802.3af, and as best I can tell the phones do too... Remote cable tests off the switch show me two things of note, but I can't find good info on the standard that says whether POE should still work: - The two main data pairs are intact, but crossed (I suspect someone bought a bunch of x-over patch cables) - The two extra pairs show shorted, but not sure if I'm seeing the POE transformers on the phones as a short

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