[Asterisk-Users] Asterisk + WiFi Phones

[Michael Graves]

FWIW, the cordless handsets on the Aastra 480i CT work well. I've waled
about while on a call, to a distahce of approx 300 feet before the call
quality started to suffer. The phone supports up to 8 (I think)
handsets, treating each as a separate extension. It can page between
handsets without involving Asterisk. It supports up to 9 line
appearances, which means that all the cordless and the base units can
be on a call at one time.

The only thing that I hated about the Engenius phones was the fact that
they didn't support a plain 2.5mm connector for a headset.

The 480i CT is pretty awesome.

Michael

On Wed, 23 Nov 2005 17:05:48 -0500, Cory Andrews wrote:

>I concur with Michael, the current crop of WIFI phones on the market do 
>have their individual quirks, and you will likely encounter issues using 
>consumer grade access points.  If you have some money to throw at this, 
>and want a real slick, industrial grade solution that will integrate 
>with SIP, I would recommend you check out the Durafon 1X or Durafon 4X 
>from Engenius.  We have seen these implemented and SIP enabled using 
>your garden variety ATA or FXS gateway.  These are not WIFI phones, they 
>use conventional Digital spread spectrum with frequency hopping, and 
>have a very cool, full duplex 2 way radio function as well.  The 
>handsets are bulletproof as well, very rugged and well designed.
>
>These were designed for relatively "extreme" environments, and they work 
>very well, but are not inexpensive.
>
>Cory J Andrews
>Partner / Purchasing
>+++++++++++++++
>VOIPSupply.com - Everything you need for VOIP
>454 Sonwil Drive
>Buffalo, NY 14225
>+++++++++++++++
>tf voice - 800-398-VOIP X22
>l voice - 716.630.1555 X22
>f - 716.630.1548
>e - Cory at VOIPSupply.com
>AIM - b2Cory
>
>
>
>Michael Graves wrote:
>> On Wed, 23 Nov 2005 15:33:49 -0600, David Tillman wrote:
>>
>>   
>>> This is only slightly related to Asterisk (in that we are using
>>> Asterisk as our PBX),
>>> so feel free to contact me off-list.
>>>
>>> I need to hear from someone who has practical experience using the combo of
>>> Asterisk, WiFi, and WiFi VOIP phones like the Hitachi-Cable IPC-5000.
>>>
>>> In particular, I need to know if scattering consumer grade access
>>> points (Linksys,
>>> D-Link) throughout a warehouse is going to be satisfactory, or if we
>>> should use some
>>> kind of mesh access point from Orinoco or Strix. (In hopes of a better handoff.)
>>>     
>>
>> I tried using the consumer access points (Linksys WAP-54G) and had not
>> end of troubles. Firstly, they all have to have the same SSID or not
>> hand-off at all. Secondly, I found that the WLAN bandwidth would
>> occasionally just go away for a few seconds, which caused calls to
>> simply go silent for 3-4 seconds unexpectedly. Never long enough to
>> drop the call...but enough to force me to ask the other person to
>> repeat themselves. Lastly, the volume level presented by the WIP-5000
>> was never enough for my tastes.
>>
>> I found that the range around each access point was very limited. Bear
>> in mind that consumer access points often don't put out the full
>> allowable RF power. If you use third party firmware hacks to up the RF
>> output you'll find that they start to through a lot of spurious
>> interference as well. Not the best quality radios I guess.
>>
>> I eventually switched to using a Astra 480i CT desk phone with a couple
>> of corless handsets. It's been great.
>>
>> Michael Graves
>>
>> --
>> Michael Graves                           mgraves at pixelpower.com
>> Sr. Product Specialist                          www.pixelpower.com
>> Pixel Power Inc.                                 mgraves at mstvp.com
>>
>> o713-861-4005
>> o800-905-6412
>> c713-201-1262
>> fwd 54245
>>
>>
>>
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--
Michael Graves                           mgraves at pixelpower.com
Sr. Product Specialist                          www.pixelpower.com
Pixel Power Inc.                                 mgraves at mstvp.com

o713-861-4005
o800-905-6412
c713-201-1262
fwd 54245