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troubleshooting Question

Cisco 7940 Phones not receiving power via ethernet

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Rob Sanders asked on
Voice Over IP
5 Comments1 Solution859 ViewsLast Modified:
I have just put in some new network drops that I thought were done correctly, however when I plug my Cisco 7940 phones into these network drops they do not receive power. I have verified that data comes through them just fine. I have plenty of other phones in the officer that are receiving power from the switch just fine but in the new network drops they won't. I can take the phone and plug it directly into the switch on the same port and it will power on, therefore I think it must be something wrong with the cable/connection/drop but I can't figure out what it is. It seems to be wired exactly the same as the ones that have worked previously and it is Cat5e cable like the rest of them. Does anyone have any ideas of what I could do to effectively troubleshoot and resolve this problem?

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