[asterisk-biz] looking for Wifi Ip Phones

[trixter aka Bret McDanel]

On Thu, 2006-09-14 at 09:26 -0400, Andrew Kohlsmith wrote:
> A wifi phone with bluetooth and a sane set of ringers and soft button control 
> would be the cat's ass.  So far there is no such thing, though.  :-(

Gotta be careful, bluetooth is quite piggy in the rf spectrum, combining
that with a 802.11b/g device which uses the same set of spectrum, given
how close the BT and wifi antennas would be to each other would cause a
dramatic reduction in range from the AP due to desensitizing the
antennas of the other rf unit.

Basically the two dont play well together especially when the antennas
are close.

now 802.11a would be fine as that is a different frequency band.

You also need to be careful about network saturation, wifi is half
duplex, which means that each unit as well as the access point (well
most of em, a couple have 2 radios to compensate for this problem) can
only send or receive at any given time.  If you have a busy network, you
will see audio quality go downhill even if  there is enough signal.  Its
generally not noticable on web/email/etc but is when you are doing
unbuffered realtime streaming.  Now if your network is idle its not
usually a problem, but as you increase the amount of data on that
network you run into more potentials for this to become a problem.


-- 
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