[cisco-voip] 802.3af support in 7940 IP Phone

[Kelemen Zoltan]

7940's & 7960's won't work on 802.3af POE (non-Cisco switches, mostly), 
while 7941 & 7961 will work with both types of POE (Cisco AND standard).

As far as I know, basically every new-generation Cisco Phone (7906, 
7941, 7961, 7936 etc.) is POE standards-compliant,  while old phones 
(7905, 7940, 7960 and so on) work only with Cisco POE switches.

Since POE is something really hardware related, I doubt a firmware 
upgrade could change this.

regards,
  Zoltan

May, Simon wrote:
> I'm confused, I have 7940's, 7960's, 7941's & 7961's all using POE.
>
> This is from Cisco ..
>
> *      The preferred method for powering Cisco IP Phones is through
> Power over Ethernet (POE). There are two variants of POE: Cisco Inline
> Power and the IEEE 802.3af standard. All Cisco IP Phones support the
> Cisco Inline Power variant, and the 7970G model offers both Cisco Inline
> Power and 802.3af support. .
>  
> *      If POE is not available, or the customer chooses to power the
> phones via an AC power adapter, the preferred network configuration is
> Cisco Catalyst Switches that have been configured for automatic loop
> detection and recovery. For more information, see Table 1 and
> Configuration Guidelines.
>  
> *      Cisco does not support the use of Cisco IP Phones with unmanaged,
> non-enterprise class switches that cannot automatically detect a loop
> condition and recover from the effect of loop back traffic. Follow the
> Configuration Guidelines section for specific recommendations.
>
> Simon
>
> ------------------------------------------------
> Message: 3
> Date: Tue, 3 Jul 2007 22:25:53 -0400
> From: "Jim McBurnett" <jim at tgasolutions.com>
> Subject: Re: [cisco-voip] 802.3af support in 7940 IP Phone
> To: "zohaib shabir" <zohaibshabir at gmail.com>,
> 	<cisco-voip at puck.nether.net>,
> <cisco-voip-request at puck.nether.net>
> Message-ID:
> 	
> <D2BBAE709B4D874DAC556C7EB9D938FC347805 at exchange.TGASolutions.local>
> Content-Type: text/plain; charset="us-ascii"
>
> Does not support .af-the 7941 will..
>
> Jim
>
>  
>
> From: cisco-voip-bounces at puck.nether.net
> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of zohaib shabir
> Sent: Tuesday, July 03, 2007 11:48 AM
> To: cisco-voip at puck.nether.net; cisco-voip-request at puck.nether.net
> Subject: [cisco-voip] 802.3af support in 7940 IP Phone
>
>  
>
> Dear All,
> Can any one know that IP Phone 7960 support IEEE 802.3af. If yes please
> specify what firmware it requires 
>
>