Cisco IP Phone 7945 problem

[jailaurenat]

Hello, guys.

Have a problem with Cisco IP phone 7945. After upgrading IOS on switch C4506E, 10 ea IP Phones stopped working. I tried to do factory reset (123456789*0#), but they didn't reset. Speakerphone button light is green and always stays on. Please help to resolve this problem.

Thanks in advance

[Rolando Valenzuela]

Have you try plugging that phone to another swich? this new upgrade include energywyse feature? can you check if the port is giving the correct energy levels.

Rolando.

[jailaurenat]

Yes. I tried plugging in to other switches, but it still didn't work. Can you suggest any other options?

[Rolando Valenzuela]

At some point the phone shows something in the screen? Have you tried the key combination do to a factory reset.

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/7965g_7945g/6_1_3/english/administration/guide/7965_613_AG/7965trb.html#wp1095587

Rolando.

[jailaurenat]

I did factory reset. But still speakerphone button light is green and always stays on. No changes.

[Aman Soi]

Hi,

run the command show power inline to check power usage.

regds,

aman

[jailaurenat]

Hi, 

test#sh power inline gigabitEthernet 0/4
Interface Admin  Oper       Power   Device              Class Max
                            (Watts)                            
--------- ------ ---------- ------- ------------------- ----- ----
Gi0/4     auto   on         15.4    Ieee PD             3     30.0 

Interface  AdminPowerMax   AdminConsumption    
             (Watts)           (Watts)           
---------- --------------- --------------------  

Gi0/4                 30.0                 30.0

PoE is up, Ethernet is down

[Aman Soi]

if Ethernet is down, this means phone ethernet port gone has faulty.

can u try connecting any working phone on the same switch port?

if it works,then, u need to do RMA.

regds,

aman

[Charles Hill]

Take a look at this field notice.

http://www.cisco.com/c/en/us/support/docs/field-notices/637/fn63772.html

FN 63772 - IP Phones - May Fail To Boot-Up After A Power Cycle - Fix-on-Failure

It looks like your scenario.

"Phones that fail remain in a stalled boot-up state where the LCD is blank and the speakerphone lamp is lit."

Unfortunately the work around is RMA...

Hope this helps,

Please rate helpful posts.

Thanks.