Peter wrote " It would be useful if we could extract the info
ourselves from our mobiles. ..... it's in there waiting to be let out
surely !"

It is there using the timing advance facility but still not accurate
enough - after all a cell can be approx 25km diameter out in the
sticks. To get around this the emergency services have a GPS chip in
their TETRA terminals to provide accurate location infrmation.

Graham
www.jannock.org.uk


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