Val Constable - IP Phone Models 7965G & 7945G Issues

[Val Constable]

Hello All, is there anyone in the forum able to recognize and or have experienced the same issue in the past.

I have approx 32 Cisco IP Phones ( Models 7965-G & 7945- G ) NOT ABLE TO POWER UP when plugged in, they are in a Cisco 3500 Switch series, back plain.

They ALL once worked just fine in my environment and with the start of 1 going down then came the plague and now I have 32 dead.

There are only 116 IP Phones presently in the environment and might I there say that the Cisco 3500 Switch is a hardware over kill, but the company I represent inherited the equipment.

Any help ideas and or known systoms will be a great.

Cheers,

Val.

[Aman Soi]

Hi Val,

What is the exact switch model u are using?

Did u try powering these phones with power adaptor or  another PoE switch ?

or

try raising the RMA for one of faulty phone & check whether it is working on same 3500 switch.

regds,

aman

[Val Constable]

Hello Aman,

The Switch is a Cisco 6500 series.

I do not have power codes and the Phones are not covered under any warrantee.

I have tried plugging he phones into other POE Switches directly and same symptoms they power on / after cycle is done they go dead.

Any ideas,

Val.

[paolo bevilacqua]

Seems like they got corruputed firmware and unable to boot. Not an hardware issue and should be recoverable.

You can look for similar threads here, but I strongly recommend you engange a reputable consultant, or UC certified Cisco parter, to save yourself much time and frustration.