From my knowledge it has nothing to do with the lan base or sp services.
Lets look into it together:
Can you please provide me with the following infomration:
1- Show ver from the 3750X Lan base
2- Connect the laptop to the switch directly and check if its learning the mac addres?
3- Once it learn then connect your ip phone to another port and see if the switch is providing power to it and the phone is getting power on ?
4- show log outputs
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HTH
