[asterisk-users] Cisco power injector with GXP2000 phones

[Salvatore Giudice]

That phone supports POE. However, there is some talk of a known issue that
they tend to crash after 1-2 hours on POE.

Grandstream phones are quite horrible products.

--------------------------------------------------
Salvatore Giudice
Salvatore.Giudice at VoIPSecurityTraining.com

VoIP Security Training, LLC
http://VoIPSecurityTraining.com

848 N. Rainbow Blvd. #1676
Las Vegas, NV 89107
Phone: (617) 959-7625
Fax: (214) 279-2906

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Jon Pounder
Sent: Thursday, December 06, 2007 10:45 AM
To: asterisk-users at lists.digium.com
Subject: Re: [asterisk-users] Cisco power injector with GXP2000 phones

Quoting Salvatore Giudice <Salvatore.Giudice at VoIPSecurityTraining.com>:

> The electricity is carried on different pins in a cisco poe injector. Just
> because they both support the same standard doesn't mean they were
> implemented the same.
>

I didn't even know the gxp2000's could handle poe - anyone care to  
share what voltage/current they expect on what pins ?

even if I could just move the existing powersupplies back to the  
punchdown panel that would unclutter desks and make centralizing ups  
power that much simpler.





>
>
> --------------------------------------------------
> Salvatore Giudice
> Salvatore.Giudice at VoIPSecurityTraining.com
>
> VoIP Security Training, LLC
> http://VoIPSecurityTraining.com
>
> 848 N. Rainbow Blvd. #1676
> Las Vegas, NV 89107
> Phone: (617) 959-7625
> Fax: (214) 279-2906
>
>
>
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Ricardo
> Carvalho
> Sent: Thursday, December 06, 2007 10:19 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: [asterisk-users] Cisco power injector with GXP2000 phones
>
>
>
> I've tried to use a Cisco power injector to supply power over Ethernet to
a
> GXP2000 phone without success. Although when I plugged these phone to a
PoE
> capable Cisco Switch it worked without a problem!
>
> Knowing that all these three equipments implement IEEE 802.3af protocol,
why
> doesn't it work with the Cisco power injector? Anyone also had this
problem
> before?
>
> Thanks,
> Ricardo Carvalho.
>
>



Jon Pounder

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