Accessories Do in-car effective signal boosters for mobile phones exist ?

[ship69]

Hi

Is there such a thing as a 'universal' signal booster that fits into your car, works for all mobile phone networks?

If so, please can someone recommend one :^)

e.g.
Does this sort of thing actually work?
If so how do you use it? How does the aerial connect to your mobile phone's aerial?
http://www.amazon.co.uk/IPHONE-SIGN...8-2&keywords=mobile+phone+antenna+booster+car
There reviews talk a lot about SatNavs being helped, but what about a mobile phone's voice channel?

Thanx

J

 

[FishenFool]

Wilson Electronics makes some units like the one here: http://www.amazon.com/Wilson-Electronics-MobilePro-Portable-Includes/dp/B001JT1E5G

 

[ship69]

Thanx

Although has terrible user reviews... !