[asterisk-biz] looking for Wifi Ip Phones

[Andrew Kohlsmith]

On Thursday 14 September 2006 09:44, trixter aka Bret McDanel wrote:
> 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.

While this is true, I don't see much trouble using BT on my laptop with wifi 
on my laptop.  Granted, the antennas can be many inches apart compared to how 
far apart they could be on a candy-bar style wifi phone, but it does seem to 
work all right.

Distance from the AP isn't so much an issue, as anywhere I'd be planning on 
really using this would have very good wifi coverage.

> 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.

This is true; but is true with any wifi phone.

-A.