"Big Brother" is watching your mobile
You've seen it in the movies and on American television shows
such as "24" or "Waking The Dead". The police try to find the location of a suspect by mobile tracking systems and in
minutes they have the suspect's exact position displayed on a
hi-tech phone map. It all sounds like Hollywood fiction or a spying fantasy, but you may be surprised to learn that
not only does such mobile location technology exist; it is also now available
for anyone to use covert tracking in mainland Great Britain! Infact the police have long had the ability to access mobile phone locations, as has been made clear in the recent Rupert Murdoch News International Phone Hacking scandals where it has been alleged this information had illegally been passed to the press.
Mobile phone location tracking was quietly launched
in mainland Great Britain during 2003 when the mobile phone companies decided to allow their gsm location data to be used on a commercial basis by third party operators. Currently it works on T-Mobile,
Vodafone, Orange, O2 as well as other phone providers such as Fresh, Tesco, Argos, Asda and Easymobile on the standard GSM networks and that includes
Pay As You Go phones, but other networks such as 3 will follow soon, along with support for 3G networks. Surprisingly
no extra hardware is required and it will work on any standard
handset - even older models - providing you have the permission
of the person you want to track. You don't even have to use the
internet, although many tracking location services require you to register
and view the location maps online.
The technology behind this new location tracking
service is surprisingly simple. All mobile phones work by being
constantly in touch with the nearest phone mast to maintain good
reception. You can sometimes even hear these signals as funny
chirruping/clicking sounds if you place a mobile handset close to
a loudspeaker or radio. What mobile location tracking does is measure the
distance the signal travels from the phone to the phone mast.
A bit like counting how long it takes to hear a clap of thunder,
after a flash of lighting, to calculate how far away a storm is,
only in this case it's a lot more sophisticated as it uses more
than one mast to triangulate the position. The one drawback is
the phone has to be switched on, so it won't work on a lost mobile
after the battery has run down!
GSM mobile phone tracking is cheaper, but
less accurate than GPS satellite tracking which has been used
for many years by the road haulage industry and in car Sat Navigators.
Unlike GPS, GSM won't show you what street the mobile is on. What
it will do though is show you a radius of where it is likely to
be. The accuracy will vary on a number of factors, such as the
landscape (i.e. is it flat or hilly), how many phone masts are
nearby (towns are much better than the countryside in this respect
for network coverage) and even the weather will affect the results
slightly, but the best accuracy is usually up to 50 to 100 metres.
Obviously this is enough to find a person or stolen vehicle, but
not always a lost phone.
Setting up mobile phone tracking is easy
and normally only takes a few minute to complete. Registration
methods vary depending on which company you choose, but they all
share similar guidelines. These codes of conduct have been laid
down by the phone network operators to prevent misuse, such as
by paedophiles. The first is that you must provide your full name
and address and a valid form of online payment (either a credit
or debit card) which must match the address of the person making
You also need the permission of the person
you intend to track! This is usually taken care of for you by
the service provider automatically sending an SMS text message
to the mobile number. This normally includes a password, or short
code, which you'll need to be able to activate the phone. Once
you have done that you can start tracking! Most service providers
allow you to view the maps as a web page and some services also allow you to see it as a text message
on your mobile.
Sales of mobile location tracking have been
brisk, according to Trace A Mobile's Managing Director Jonathan
Cook. "Since launching in October 2003, we have signed up thousands
of customers who are both family and business users. We have also
covered major sporting events, like the London Marathon and the
Great North Run for the BBC, who wanted to track the location
of celebrity fun runners, such as Nell McAndrew and Ranulph Fiennes,
who were carrying mobiles. All of this has generated a lot of
media interest and publicity."
Business users have also been quick to spot
the advantages of mobile location tracking to find people on the
move. Obvious business benefits include being able to track the
location of deliveries, eg van drivers, or monitor sales reps
or staff on call outs. It is even being used to retrieve stolen
assets where a "tracked" phone has been placed somewhere out of
sight inside a vehicle acting as a passive "phone finder" unit.
One of the leading mobile phone tracking
companies catering for this growing B2B market is www.mobilelocators.com,
although they are keen to stress - just like the domestic versions
of the service - that employees have to give their consent to
being tracked. It would seem though that employees are happy to
be tracked, as long as they are kept informed and made aware of
the potential safety benefits it offers them, eg not needing to
answer so many calls from head office while driving or should
they get into difficulties in a medical emergency, or if they
find their life is in danger and they are unable to call for help.
So how much will mobile phone tracking cost
you or your business? Probably less than you think. There are
a number of different pricing models. Some are subscription based
and include free location tracks. Others are Pay As You Go allowing
you to pre-pay for credits.
Nevertheless prices are competitive and
are broadly similar for private and commercial users. For example,
Trace A Mobile offers 15 searches for just £ 24.99 a month. This is
aimed at families and children. Locate Mobiles offers a similar option. The cost of each location search varies
from company to company, but is in the range of 17p - £1.33p, depending
on the volume purchased. What is mobile tracking not? Well it is not a
mobile phone directory so you can't look up mobile devices or create
a phone tracking list. It only works on individual mobile devices that
have a SIM card and unique mobile number. So can you look up a
mobile number? Mobile tracking services don't keep lists of mobile
numbers or mobile device details, such as the make or model of phone.
The idea is you can only find people like friends or family via their
mobile numbers. You can though register multiple mobile numbers as
long as each phone passes the security checks, eg it accepts the text
message sent to it.
Although consent was given by the UK's major
mobile phone networks to run this service in mainland Great Britain,
this has not been the case for the whole of Europe or the rest
of the world for that matter. Currently in Europe only Germany,
Netherlands and Norway have similar services, with the US still
lagging behind in GSM tracking technology.
Mobile phone number tracking technology
may be new, but it looks set to be around for a long time. With
improvements in how the phones are tracked, using a new system
called Timing Advanced software (which increases accuracy by up
to 300%) and fitting of GPS chips as standard in new phones and
tracker devices no bigger than a grain of rice, it really does
look like Big Brother will be watching you. So perhaps, at long
last, a lost phone will soon be a thing of the past...
Useful Mobile Tracking Information
The technology of locating is based on measuring power levels and antenna patterns and uses the concept that a mobile phone always communicates wirelessly with one of the closest base stations, so if you know which base station the phone communicates with, you know that the phone is close to the respective base station.
Advanced systems determine the sector in which the mobile phone resides and roughly estimate also the distance to the base station. Further approximation can be done by interpolating signals between adjacent antenna towers. Qualified services may achieve a precision of down to 50 meters in urban areas where mobile traffic and density of antenna towers (base stations) is sufficiently high. Rural and desolate areas may see miles between base stations and therefore determine locations less precisely.
GSM localization is the use of multilateration to determine the location of GSM mobile phones, usually with the intent to locate the user.
Localization-Based Systems can be broadly divided into:
A SIM card also known as a Subscriber Identity Module is part of a removable Integrated Circuit Card used in mobile phones. A SIM card stores your service-subscriber key (IMSI) which is used to identify you on a particular network. By changing the SIM card in a phone you are effecitvely changing the phone user and for tracking purposes it is the SIM card not the mobile phone handset that is tracked. SIM cards come in 2 sizes but today most people use the smaller more popular size: 25mm x 15mm x 0.76mm.
Find Phone Number
A frequent misunderstanding is whether mobile tracking can help you find phone numbers or addresses. The answer is that it is merely locating the phone's location and cannot actually find phone numbers just by their location or their owners' name. So if you are looking to find phone numbers then you need a phone directory service or reverse look up phone provider.