I too use either HP Procurve 2650 or HP Procurve 2610 switches and have
never had lockup problems (except with Grandstream phones, but that was
a different unrelated presence issue). They really are the best switches
for the money. I also hear Adtran has some nice PoE switches though
you're limited to 24 ports:
http://www.adtran.com/web/page/portal/Adtran/group/6
>> Linksys switches in use are the latest two managed models - 24 and 48
>> ports and the site have quite a number of them deployed (main switch
>> where sip server and gateways are, then extended to about 5-to-6
>> location via uplink port - the extended locations also use the same
>> switch for phone end-point connection)
>>
>
> I just wanted to chime in here as I wrestled with the power issues
> about a year ago. We experienced many of the same issues including
> freezing and reboots (mostly reboots) so I setup a small test
> environment using a Foundry FPS-648P switch and combination of 35
> 650/320 polycoms (http://emstar.com/installs/POE-Phones.jpg). The FGS
> has a "power-by-class" setting that allows power provisioning on each
> port. This gave us a the ability to test multiple power levels...
>
> The results were interesting:
>
> power-by-class 2 (330's are considered class 2 devices): Intercom
> paging was a big issue and would freeze or reboot the phones. Overall,
> we had intermittent issues all the way around. Introduction of a
> sidecar on the 650's almost always resulted in sporadic reboots.
>
> power-by-class 3: Issues went away with the exception if Polycom 650's
> with two side cars. I'm not convinced an attendant station with two
> sidecars will ever work well over POE.
>
> The other consideration is your cabling. For especially long runs
> (>150ft) you may want to consider 22AWG catagory cable. CAT6 is often
> made with the smaller gauge copper. DC current likes more copper.
>
>
>> As the end-user already purchased number of these switches, replacing
>> all with HP Procurve will be relatively costly and perhaps not practical
>> taking into account the shrinking budgets.
>>
>
> Not sure if this is the answer you are looking for, but sometimes you
> get what you pay for. The "cheapest" switch I feel comfortable
> recommending for a VOIP system is the HP 2610.
>
> My $.02
>
> -Jim
>
>
_______________________________________________
sipx-users mailing list [email protected]
List Archive: http://list.sipfoundry.org/archive/sipx-users
Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users
sipXecs IP PBX -- http://www.sipfoundry.org/
