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Aastra 6753i Ehs Manual

6755i 6757i

Made by: Aastra
Type: EHS Guide
Category: IP Phone
Pages: 15
Size: 0.41 MB

 

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1

EHS support 

Aastra 6753i, 6755i and 6757i phones

May 2009

Your Connection to the World.

 


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2

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

 


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3

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

 


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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)

 


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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
– …

 


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6

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!

 


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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.

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.

!

 


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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

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.

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.

!

 


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9

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!

 


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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

ÆPreferencesÆSet AudioÆAudio ModeÆHeadset/Speaker)

»

For full headset functionality, disable the "Goodbye Key Cancels 
Incoming Call
" parameter. 
Aastra Web UI: Basic Settings

ÆPreferencesÆGeneral

 


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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.

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.

 


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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

 


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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

 


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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

 


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15

Thank you!

www.aastra.com