IP Phone 6921 not powering UP (with PoE)

[Juan Gerardo Hernandez]

Hi all,

I recieved a new Phone on our company, the phone is a Cisco IP Phone 6921, I use the Ethernet Cable to connect it to the switch, and the phone do not power up with any message, my question here, can this switch:

Show ver.

Cisco Internetwork Operating System Software IOS (tm) C3500xl Software (C3500xl-C3H2S-M), Version 12.0(5)WC5, RELEASE SOFTWARE (fc1) Copyright (c) 1986-2002 by cisco Systems, Inc. Compiled Tue 28-May-02 11:41 by devgoyal Image text-base: 0x00003000, data-base: 0x0034A3C8 ROM: Bootstrap program is C3500xl boot loader PAB01-TyRVITI-A-sw3524-01 uptime is 3 weeks, 2 days, 20 hours, 42 minutes System returned to ROM by power-on System image file is "flash:c3500xl-c3h2s-mz.120-5.WC5.bin" cisco WS-C3524-PWR-XL (PowerPC403) processor (revision 0x01) with 8192K/1024K bytes of memory. Processor board ID FAA0502M0W0, with hardware revision 0x00 Last reset from power-on Processor is running Enterprise Edition Software Cluster command switch capable Cluster member switch capable 24 FastEthernet/IEEE 802.3 interface(s) 2 Gigabit Ethernet/IEEE 802.3 interface(s) 32K bytes of flash-simulated non-volatile configuration memory. Power supply part number: 34-0968-01 Power supply serial number: DAB042810Z3 Model revision number: A0 Motherboard revision number: B0 Model number: WS-C3524-PWR-XL-EN Configuration register is 0xF

Should work with my IP Phone 6921 Cisco?

I have done those troubleshooting here:

I've DONE This

problems: 1. Verify that the network port is functional: –Exchange the Ethernet cables with cables that you know are functional. –Disconnect  a functioning Cisco Unified IP Phone from another port and connect it  to this network port to verify the port is active. –Connect the Cisco Unified IP Phone that will not start up to a different network port that is known to be good. –Connect  the Cisco Unified IP Phone that will not start up directly to the port  on the switch, eliminating the patch panel connection in the office. 2. Verify that the phone is receiving power: – – – 3. If  the phone still does not start up properly, power up the phone with the  handset off-hook. When the phone is powered up in this way, it attempts  to launch a backup software image.

I enter the switch configuration, the device look as "not conected" and iether no CDP Protocol information.

¿Do you know what happen here?

Regards!

[acampbell · Accepted solution]

Hi,

I dont think your 3524 is compatable with a 69xx phone

3534 is really old and uses a Cisco propriety method for delivering POE but OK

with older 7940/60 type phones

69xx phones need POE as 802.3AF as delivered by newer 3750/3560 etc type switches

Regards

Alex

[Juan Gerardo Hernandez]

Thank youm u' where right, 6921 Phone's worked on a 3560 Switch and never on a 3524 Switch, U' can't force that swtich to work with those phones. I had to buy a power cube.

Regards.

http://www.velocityreviews.com/forums/t232567-hack-a-cisco-switch-to-be-802-3af.html

[rfovrtega]

How about in 3550 inline power switch? I get the 6901 blinking but no luck of getting its IVR prompts. Does the 3550 doesnt support also the 69XX Phones. Many thanks.