Vehicle Handsfree Solution Hf7600; Introduction; Handsfree Features - Ericsson EF738 Service Manual

Accessories

Vehicle HandsFree Solution HF7600

Introduction

The Vehicle Handsfree Solution HF7600 is specially designed for the Ericsson 7X8-
family telephones and includes apart from the handsfree facilities also a power sup-
ply and battery charger for the phone.
The four main components are:
• Cradle
• Stick-on Microphone
• External Speaker
• HandsFree Unit

HandsFree Features

After placing the telephone in the HF7600 holder, all handsfree functions are con-
trolled by the DSP (Digital Signal Processor) and its peripherals located in the
HandsFree Unit.
The handsfree communication is full duplex, i.e. both parties will be able to talk
simultaneously. Some attentuation can however be noticed on the land side during
simultaneous talking, while both speech channels will be open on the mobile side all
the time.
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