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T20P connected to Cisco catalyst 2960 - Printable Version

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T20P connected to Cisco catalyst 2960 - jcmluquez - 07-04-2013 10:01 PM

Hi all! I've connected a T20P telephone to a catalyst 2960 switch with PoE support but the telephone do not start. The telephone specs says that it support PoE. The switch port is configured with a max power supply of 15.4W.
Is there a specific setting that I'm missing?
Many thanks in advance!


RE: T20P connected to Cisco catalyst 2960 - Yealink Support - 07-05-2013 02:19 PM

Hi Jemluquez,
Sorry we didn't try with a Catalyst 2960 here before.
Our PoE is require 48V power.
Does every T20P can't start with this switch? Or only this phone can't start?


RE: T20P connected to Cisco catalyst 2960 - jcmluquez - 07-08-2013 09:35 PM

Hi! Thanks for the quick response.
None of the 5 T20P can start connected to the switch. By the way, other Cisco's phone can start with PoE of the switch.
I will try with a phone firmware upgrade if there any available.
I'll keep you posted.
Regards,


RE: T20P connected to Cisco catalyst 2960 - curse821 - 12-16-2014 03:49 PM

Hi Yealink,

I've got a question, we've bought a Yealink IP Phone SIP-T19P and a IP Phone SIP-T20P. The T20P PoE are working in our Cisco c2960 48pst-l switch, but when trying for the T19P its PoE doesn't work. Is there any configuration we need to do in the IP Phone SIP-T19P?

Thanks.


RE: T20P connected to Cisco catalyst 2960 - PatKra - 12-16-2014 11:52 PM

Hi,

Is it an "old" catalyst 2960?
I'm not very much into cisco switches but I know that cisco had its own pre-IEEE 802.3af standard, before the IEEE 802.3af POE standard.

more info here:
http://www.voip-info.org/wiki/view/Cisco+POE

Best Regards,
Patrick