wrote in message
oups.com
Can someone help with some advice and information with
the FRITZ!Box range of products.

As a long term user and having written reviews on one or two of them, I'll
try ;-)

All of the Fritz!box models come with a built in DSL
interface. I do not utilize DSL I am on a cable
connection. Does this matter? Can I ignore the DSL
function?

Actually there is a device without the ADSL modem, but it isn't widely
available in the UK. With the latest firmware though the internal modem
can be disabled.

Is the wireless function on the two upper range models
compatible with a Notebook purchased in the US? I.e. is
the wireless computing standard universal?

Pretty much, although some countries restrict the RF channels that can be
used.

Can I ignore the PSTN input? I do not have access to a
UK Standard PSTN line.

There is an option to set your region, this sets all parameters to the
correct ones for your region. It isn't a comprehensive list of parameters
as for devices such as the Sipura range, but a simple list of countries.
The US isn't currently listed, but there is an option "other country"
which might work, but I would advise you contact AVM tech support direct
to ask, they are very quick to respond as a rule, I've found.

This unit, I assume, comes from Germany. Are the
voltages (Ringing, speech, on-hook, etc) normal UK
standard voltages? Are they configurable should I want
to utilize US kit?

See above re. regional settings.

The specs describe the VoIP ports as fax compatible.
What does this mean? Would I have to use a service that
conforms to the correct Fax standards?

Most VoIP providers in the UK don't support the T.38 fax protocol over a
VoIP connection (I suppose it should be called FoIP), if you need fax you
should check your provider supports T.38. I have successfully sent and
received faxes using the G711a protocol but it isn't guaranteeed.

What are the units' power supply voltages? Are the power
supply connections the normal 'tip and ring'
arrangements? I will have to purchase a 120v converter.

The units come with a PSU rated to suit the country in which they are
sold. If there is an official US distributor then you will get a suitable
unit, otherwise you may have to get a converter, although many PSU's these
days will run on anything from 100 to 240V.

AVM's website is at www.avm.de/en - click on the relevant link for
support.

Hope this helps,

Ivor