You can easily add more people who will receive the SOS alert. This is how:
On the web page (after log in) you click on "Settings" and you will see a list of all the
possible alerts that the device can trigger. For each alert, you will see a link "add
contact to this alert". You click this, and enter as many contacts as you wish (emails or
phone numbers). You will also see contacts that you have entered before, and you can
check them on or off if you want them to receive some of the alerts and not others.
Understanding GPS signals and reception
As you may know, the device uses GPS technology to compute its location. To do that
it has to be able to receive signals from the GPS satellites which are up there in space.
GPS signals can be easily received when the device is outdoors and usually even when
it is in a car. But the GPS signal is blocked when the device is indoors, or under a
concrete roof. Even if you put it next to a glass window where it seems to "see the
sky" the signal might get blocked or diverted.
In such cases, the device uses an alternative method of computing its location - by the
signals of nearby cellular network antenna t
o
wers. This is less accurate than GPS
location outdoors, and might be hundreds of feet away. When the device sends a
cellular-based location (also called "GSM-based location") you will notice it by a
semi-transparent blue circle displayed around the approximate location, and a text
note about it.
