Table of Contents
E65 TELEPHONE

Subject Page

Introduction.3

System Overview.3

Components

Handset.4

Controller and Control Display..4

Telecommander..5

Antenna.5

Hands-Free Microphone.5

Multi-Function Steering Wheel.6

Manual Emergency Call Button.6

Audio System Controller (ASK).7

Speech Processing System (SVS).7

Telephone Control Unit.7

Review Ouestions.8

Initial Print Date: 10/01

Revision Date: 11/01

E65 TELEPHONE
Model: E65 - 745i

Production Date: 11/2001 - Start of Production

Objective:

After completing this model you should be able to:

• Understand how the telephone is integrated into the electronics of the E65.

• Recognize the various methods of controlling the telephone.

2

E65 Telephone

Introduction

For the E65 the CPT-8000 Timeport R portable phone will be offered as standard equipment.

To integrate the telephone into the communication network, the telephone control unit
(TCU) is equipped with a MOST port. All communication with the vehicle occurs in digital
form via the MOST network.

The telephone can be operated with the following devices:

• Handset

• Controller and Control Display

• Telecommander

• Speech Processing System

• Multi-Function Steering Wheel

System Overview

A. Telecommander

B. CPT8000

C. Emergency call
button

K. Compensator

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3

E65 Telephone

Components

Handset

The telephone to be introduced with the E65 in the United States will be the Motorola R CPT
8000 tri-mode, dual-band portable phone (810 or 1990 Mhz CDMA/TDMA, or analog).

The phone is stowed and charged inside of the center console storage area.

For safety reasons the handset is not operational when the vehicle is in motion.

Controller and Control Display

The Control Display operated by the Controller can be used to access stored numbers in
the address book or view SMS messages. The telephone control unit communicates with
the CD and Controller via the MOST network.

1. Top 8 frequently called
numbers.

2. Last (most recent call)

3. Search (alphabetically)

4. Search (in stored order)

5. Phone book display

6. Next page

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4

E65 Telephone

Telecommander

The Telecommander is located on the left of the
center console close to the ASK. If you press
on the telecommander it moves outward.

The Telecommander allows control and dialing
of the telephone from a 3X5 alpha-numeric key
pad.

The ergonomic arrangement in the vehicle
allows easy operation of the telephone.

The connection of the Telecommander to the telephone control unit is made via a CAN sub¬
bus.

Antenna

The telephone antenna always includes a
multiple-band antenna for the telephone and
a GPS antenna (Global Positioning System)
for the navigation system.

In the U.S. models two telephone antennas
are installed for ranges of 810 Mhz and 1990
Mhz as well as a GPS. The U.S. antenna is
recognizable by its three plug connections.

Hands-Free Microphone

In the head liner, two covers (1) for the hands-free microphone
are mounted on the left and on the right close to the sun
visors.

The hands-free microphone is always mounted on the driver’s
side, the right side cover is a blank (Right side cover is used
for RHD vehicles).

The microphone is an active microphone with input sensitivity
of 75 mV/74 dB.

5

E65 Telephone

Hands-free operation takes place via the microphone and the audio system via the ASK.
The ASK provides the audio channels and switches off all other audio sources during
hands-free operation.

This is a digital full duplex transmission. It means that the AF (audio frequency) is enabled
for both parties (speaking and listening simultaneously in both directions). An echo com¬
pensation avoids feedback.

The hands-free microphone is also used for voice input for the Speech Processing System.
In the telephone control unit, the analog signals from the microphone are converted to dig¬
ital signals and forwarded to the SVS via the MOST.

Multi-Function Steering Wheel

The left side button pad of the MFL contains controls that can be used
for the telephone system. The push-to-talk button activates the SVS
menu. The +/- rocker switch allows adjustment of the telephone
handsfree volume via the ASK and the send/end (phone icon) button
allows accepting, initiating or ending a hands free call.

On the right side button pad the “up/down” rocker buttons allow
scrolling through the telephone address book.

Communication with the MFL is via the byteflight-ZGM-K-CAN-CD-
MOST connection.

Manual Emergency Call Button

The manual emergency call button (1) is
a direct input (hardwired) to the telephone
control unit. When a call is made the LED
(2) illuminates.

Once the call is initiated there is no way
to cancel.

The automatic emergency call is made by
the SIM after a collision, based on the
severity. The signal from the SIM to the
TCU is passed on over a dedicated
circuit. Refer to the ISIS chapter for more
detail.

6

E65 Telephone

Audio System Controller (ASK)

The Audio System Controller controls the entire audio system. During hands-free opera¬
tion, all audio signals are suppressed (muted) and the audio signals from the caller are deliv¬
ered to the front left and right mid-range speakers.

Speech Processing System (SVS)

The microphone signal supplied by the TCU on the MOST bus can be used by the SVS.
The Speech Processing System provides control for different telephone functions. For
details, see the module on the Speech Processing System.

Compensator

A compensator is installed in-line between the vehicle antenna and the Telephone Control
Unit. The compensator ensures that the antenna signal is not degraded before reaching
the TCU. The compensator is located in the left side of the luggage compartment.

Telephone Control Unit

The telephone control unit is located in the left side of the luggage compartment. It is
responsible for:

• Executing the automatic and manual emergency call (integrated with navigation).

• Controlling charging and cycling of the handset batteries when plugged into the vehicle.

• Providing the microphone signal as a MOST bus telegram.

• Integration of the telephone into the vehicle Drive system via the MOST network.

1. 26 pin ELO

7

E65 Telephone

Review Questions

1. From what control device can a hands-free call be initiated or accepted? Describe the
signal path necessary for that function to occur.

2. How is the hands-free microphone made available to the SVS?

8

E65 Telephone