Wherify Wireless Wherifone G500 Series - Manual (Page 15)

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Note
The Wherifone requires a fully activated SIM Card to function. The
SIM card must be inserted in the phone prior to activation. The unit
will not make or receive calls, nor perform a locate without a SIM
card. The phone must be off when you insert or extract the SIM card.
Step 4: Turn On the Wherifone
The Wherifone must be ON to operate and to communicate information
about your location, to receive incoming phone calls, or make outgoing
phone calls. To turn on the Wherifone, press and hold the Power
button for 2 seconds.
To turn off your Wherifone, press and hold the Power button for
4 seconds, OR; press and hold the Power Off/End button for
5 seconds.
Figure 1.3
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