Lexus 2003 LS Owner's Manual page 456

Audio & Air Conditioner Interface
When a call is made with the Lexus Integrated Mobile Phone
System, the radio volume mutes automatically.
When creating a voice tag with the Lexus Integrated Mobile
Phone System, the radio mutes automatically and the HVAC
remains at low speed until the voice recognition prompt is com-
pleted. This provides an environment conducive to making a
voice tag.
During a call, all speakers will mute to provide for audio, and
the HVAC will return to its prior state.
Lexus Link Interface
The Lexus Link System takes priority over the Lexus Integrated
Mobile Phone System 100% of the time. When the Lexus Link
System is activated manually, or through an airbag deploy-
ment, the system drops any call in progress automatically and
contacts a Lexus Link Representative for service immediately.
When the Lexus Link call is completed, the Lexus Integrated
Mobile Phone System is reactivated.
The Lexus Link System connection takes priority even over a
911 call. If any button from the Lexus Link panel is pressed, the
system will disconnect the call automatically.
Interfaces
60
NOTICE
Section 4