[asterisk-users] [OT] wi-fi ip phone scenario

[Alban]

I've made some tests with Hitachi WIP3000 and 5000, works really good with 
roaming (without authentification). Some parts of the AP in the mesh are 
wired (no WDS), some others are not (using WDS), but all use the same SSID 
and channel. In all cases roaming was fast, quite not possible to "hear" it.
Besides, with UTstarcom, roaming in the same mesh was not working well.
Hope it helps

Alban

> Alberto, you should have bought a dect solution, the dect technology is
> far better at swapping between cells.
>
> Wifi is still a little immature at this time.
>
>
>
> Dean
>
>
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Alberto
> Pastore
> Sent: Saturday, 28 October 2006 6:52 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] [OT] wi-fi ip phone scenario
>
> Andrew Joakimsen ha scritto:
> > Are you using WDS? While it won't totally fix every issue, I've found
> > in my trials that turning off WDS and making sure all the AP were
> > connected to the same wired network was way more reliable, no more
> > random unregistartion and issue with registering (still seems to
> > unregister at times, but re-registartion won't require a reboot).
>
> Nope.
>
> I've a group of 12 indoor colubris access points + 2 outdoor ones,
> and a msc5200 controller unit (the area
> is quite wide with two 4-storey buildings, two 80000 sq.feet hangars,
> one 40000 sq.feet outdoor parking lot)
> no wds, all of them are wired to ethernet switches, no wireless
> bridging.
> Diversity on all APs, automatic transimt power and channel selection
> (that seems to work when monitoring devices).
>
> I've tried linksys wip300/wip330, nokia e60/e70, utstarcom f1000/f1000g,
> samsung wip6000.
>
> The main problem (apart from firmware bugs/crashes which I hope
> should be fixed on newer versions) is that phones tend to stick to
> their associated AP even when it's clearly time to move to the
> next AP: if you watch the phone's rssi indicator while you walk
> inside the coverage area, you can see the value decreasing to
> almost "no signal" before reassociating, which is unacceptable.
>
> The only phones which seem to deal very well with it are the nokia
> eSeries. Unfortunately they have many other major issues.
> (two weeks ago I gave
> 3 firmware-updated e60 to my bosses to replace their cellphones
> and after one week they almost threw them back to me, complaining
> about the fact they had to reboot the phone at least twice a day
> because it freezed...)
>
> Also, on asterisk the qualify=2000 sip setting seems to be to low,
> as the console shows repeated LAGGED/UNREACHABLE/REACHABLE notices
> on those phones.
>
>  From this experience I think wi-fi technology is not really mature
> enough
> to replace dect right now. Maybe I'm wrong. At least I hope so,
> my bosses are not really happy with the new system.
>
>
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