The vast majority of mobile phone use takes place indoors but it's long been accepted that, in many homes and offices, signal strength is less than perfect and call quality suffers accordingly. The situation has been highlighted further with the advent of mobile broadband services - despite the promise of multi-megabit connections, very few mobile users experience the advertised maximum speeds. Sub-megabit connections are common and a significant proportion of users are simply unable to access a 3G network in their home or office.
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