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Automatic redial
As described previously, when an assistance request is made, the
vehicle’s cellular phone automatically dials the Lincoln Security Response
Center’s central computer and attempts to send an electronic data
message. On rare occasions, it can be difficult for the computer to
recognize the message if the cellular connection is weak or noisy. If the
transmission of the message is unsuccessful, the data call will be
terminated and the message “REDIAL IN PROGRESS/REDIALING” will
be displayed on the message center/audio display. A second call will
automatically be placed which bypasses the response center’s computer
and is forwarded directly to an operator.
Similarly, if the cellular call is disconnected by the network prior to
receipt of the termination tone, another call to the response center will
also automatically be dialed. The message “REDIAL IN
PROGRESS/REDIALING” will be displayed on the message center/audio
display and voice communication with an operator will be restored.
During redial calls, full control of the cellular phone is returned to you.
Pressing either PWR or END on the cellular handset will terminate the
assistance request and reset the system.
Location data retransmit capability
During an activation, the Lincoln Security Response Center operator has
the capability to initiate a retransmission of the electronic data message.
This may be necessary to ensure a more precise determination of vehicle
location or to track a vehicle that is moving. To accomplish the
retransmit, a special tone is sent to the vehicle by the response center.
In this situation you will temporarily lose voice contact with the operator
and the messages “SENDING LOCATION DATA/SENDING DATA” and
“DATA RECEIVED/DATA RECEIVED” will be respectively displayed on
the message center/audio display. After the data retransmission is
complete, voice communication will be restored and the CID, LAT, LON
and HDG message will again alternately toggle on them message center
/audio display.
Global positioning system
Vehicle location is continuously updated via Global Positioning System
(GPS) technology. GPS was developed by the U.S. Department of
Defense for worldwide navigational and positioning purposes. It utilizes a
constellation of 24 orbiting satellites located more than 20 000 km
(12 428 miles) above the earth. At any given time, several of the
Controls and features
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