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IP phone 7945 doesn't receive power from catalyst 4503

I have a Cisco 4503 catalyst with modules WS-X4148-RJ45V and WS-X4248-RJ45V, and two power supply (PWR-C45-1000 W),

and I have ip phone 7945, (which I think only supports 802.3af not pre-standard PoE)and when I connect it to either of the modules I don't receive and signals on the phone.

Could you please help me to find out what ecactly could be the problem?

-power supply,

- IOS version

- the switch doesn't support this phone model.

- the modules

or...

Thank you

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