R 350 (251.156) V6-3.5L (272.967) (2008)
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Voice input for telephoning
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Voice input for TELE AID emergency call system
Purpose without preequipment for portable CTEL
If a UPCI (Universal Portable CTEL Interface) control unit (N123/1) is not installed, a microphone from the hands-free system microphone group will
be discreetly wired to the emergency call system control unit (N123/4).
Purpose with preequipment for portable CTEL
The hands-free system microphone group is discreetly connected to the UPCI (Universal portable CTEL Interface) control unit. A microphone from the
hands-free system microphone group is discreetly connected to the emergency call system control unit over the UPCI (Universal portable CTEL
Interface) control unit.
