Aastra 6753i Ehs Manual

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EHS support

Aastra 6753i, 6755i and 6757i phones

May 2009

Your Connection to the World.

Agenda

Introduction

EHS (Electronic Hook Switch)

DHSG Standard

Aastra DHSG cable Kit

Ordering and pricing

List of verified/compatible headsets

Recommended settings on the phone

Introduction

Mechanisms to remotely control the hook switch when using a wireless
headset:

– RHL (Remote Handset Lifter): Motor based,

works with almost all phones, no special
requirements on the phone side

– EHS (Electronic Hook Switch)

Requires common protocol to be supported by the phone & headset.
Different standard exists

– Bluetooth Connectivity

Requires native BT support in the phone, headset connects directly to phone

EHS (Electronic Hook Switch)

In addition to audio path, EHS requires some additional cables to carry
signaling between phone and headset base station

Supported features:

– Phone signals incoming call to headset (beep in headset)

– Headset button allows to send off/on hook command to phone

– Phone signals call active / call inactive to headset, headset will unmute/mute

mic and turn on/off link-LED

Different EHS versions exist:

– DHSG

– AEI (Avaya Tenovis)

– MSH (Alcatel Lucent)

DHSG Standard

DHSG: “Drahtlose Hörsprechgarnitur” (German for “wireless headset”)

Also knows as “Siemens standard”

Supported by many phone vendors

Often referred to as “

The

EHS-Standard”

Phone vendors supporting it:

– Aastra: Office IP 70/80, Open Phone 71/73/75

and now also 6753i, 6755i and 6757i

– Polycom
– Snom
– Cisco
– Siemens
– Avaya
– Swyx
– Agfeo
– Elmeg
– Tiptel
– …

DHSG Interface

Mechanical Interface: RJ-45

– RJ45 carries voice and signaling
– No native EHS/RJ45 interface on 675xi

1
2
3
4
5
6
7
8

Send Bus
0V
Mic Signal
Speaker Signal
Speaker Signal
Mic Signal
DC in
Receive Bus

Aastra work around is to utilize existing Expansion module port & Headset jack to
support DHSG on Aastra 675xi phones

Aastra has designed a special “Y” cable that allows connectivity between the
phone and Headset base

Important:

Solution only supported on 6753i, 6755i and 6757i models

Phones Require software release 2.4 or higher

DHSG + usage of an expansion module is not possible!

Connecting the Aastra DHSG Cable Kit

1.- Connect the Aastra DHSG Cable on the back of the phone

Only the Aastra DHSG cable should be connected directly to your phone. No 3rd party DHSG cables
should be connected directly to the Aastra IP phone.
Any damage caused by connecting a 3rd party DHSG headset cable to your phone will void your
warranty with Aastra Telecom.

Connecting the Aastra DHSG Cable Kit

2.- Connect the

blue

end of the cable to the RJ-45 coupler (included in the Kit), and connect

the EHS cable provided by the headset manufacturer to the other side of the coupler

Ordering and Packaging

DHSG Cable Kit

Part Number: D0062-0011-34-00

Pricing:

19€ (Street Price)

Content:

– Aastra DHSG Cable
– RJ-45 coupler
– Installation Instructions (engl)

Important:

– This cable is only compatible with 6753i, 6755i and 6757i models
– Phones require software release 2.4 or higher
– DHSG + usage of an expansion module is not possible!

Relevant settings on the Phone

The phone will auto-detect the DHSG headset

But audio mode needs to be set to “

Headset/Speaker

” mode manually.

(Options

Preferences

Set Audio

Audio Mode

Headset/Speaker)

For full headset functionality, disable the "

Goodbye Key Cancels

Incoming Call

" parameter.

Aastra Web UI: Basic Settings

Preferences

General

Aastra Verified Wireless Headsets

GN Netcom / Jabra (

requires a GN 14201-10 cable

–

GN 9350

–

GN 9350e

–

GN 9120

–

GN 9125

Plantronics (

requires an APS-1 adapter box

–

CS60

–

CS70N

–

CS351N

–

Voyager 510S

Sennheiser (

requires a TCI 01 adapter box

–

BW900.

Use of a non-verified DHSG headset solution is at the customer’s own discretion and the customer should be
aware that some DHSG headsets require an optional cable in order to be electrically DHSG compliant.

GN Netcom / Jabra

Blue end of GN 14201-10 cable needs to be connected to blue end of Aastra
DHSG cable (using the RJ-45 coupler)

Headset needs to be set to “DHSG mode” (switch on the headset base –
depends on model)

GN 14201-10 cable

GN 9350

Aastra Phone

GN Headset base

Aastra DHSG cable

GN 14201-10 cable

RJ45 coupler

(included with Aastra DHSG Cable kit)

To headset Jack

To Expansion Jack

Plantronics

Connect the RJ-45 cable of the APS-1 (AP-1) adapter box to the blue end of the
Aastra DHSG cable using the RJ-45 coupler

DHSG

RJ-45

RJ-22

3.5mm

stereo jack

APS-1 adapter box

Aastra Phone

Platronics Headset base

Aastra DHSG cable

APS-1 cable

RJ45 coupler

(included with Aastra DHSG Cable kit)

To headset Jack

To Expansion Jack

Sennheiser

Connect the blue end of the Aastra DHSG cable to the DHSG connector
of the TCI 01 box (RJ-45 coupler not needed).

TCI 01 adapter box

Aastra Phone

Sennheiser

Aastra DHSG cable

To headset Jack

To Expansion Jack

TCI 01 adapter

BW900

Thank you!

www.aastra.com

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