Unify OpenScape Cordless IP V2 Operator's manual

OpenScape Cordless IP V2
Service Documentation
A31003-C1020-S100-03-7620

Our Quality and Environmental Management Systems are
implemented according to the requirements of the ISO9001 and
ISO14001 standards and are certified by an external certification
company.
Copyright © Unify Software and Solutions GmbH & Co. KG 12/2017
Mies-van-der-Rohe-Str. 6, 80807 Munich/Germany
All rights reserved.
Reference No.: A31003-C1020-S100-03-7620
The information provided in this document contains merely general descriptions or
characteristics of performance which in case of actual use do not always apply as
described or which may change as a result of further development of the products.
An obligation to provide the respective characteristics shall only exist if expressly agreed in
the terms of contract.
Availability and technical specifications are subject to change without notice.
Unify, OpenScape, OpenStage and HiPath are registered trademarks of
Unify Software and Solutions GmbH & Co. KG. All other company, brand, product and service
names are trademarks or registered trademarks of their respective holders.
unify.com

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OpenScape Cordless IP V2, Service Documentation 3
Contents
Contents
1 Introduction and Important Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Safety Information and Warnings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Correct Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3 Proper disposal and recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.4 Standards and Guidelines on Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.4.1 Labeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.5 Data Protection and Data Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.6 Documentation Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.1.1 DECT IP Base Station (BSIP2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.1.2 DECT Manager & Integrator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.1.2.1 Communication Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.2 System Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.2.1 Small deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.2.2 Medium deployment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.3 DECT IP Base Station Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.3.1 Outdoor Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.3.2 Powering the DECT IP Base Stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.4 Network Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.5 Software License Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3 Planning a OpenScape Cordless IP System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.1 Planning According to Call Traffic Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.3 Propagation Conditions for Radio Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.3.1 In the Open with Visibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.3.2 Industrial Sites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.3.3 Indoor Areas in Buildings in Brick and Light Construction Materials . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.3.4 Indoor Areas in Reinforced Concrete Buildings with Diverse Interior Layout . . . . . . . . . . . . . . . . . . . . 38
3.4 Determining the Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.4.1 Indoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.4.1.1 In Buildings of Brick or Light Construction Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.4.1.2 In Steel/Concrete Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.4.1.3 Factory Halls and Open-Plan Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.4.2 Outdoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.5 Installing Base Stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.5.1 Ethernet Connection Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.5.2 Where Not To Install DECT IP base stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.5.3 Where Should DECT IP base stations be installed? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.5.4 Indoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
3.5.4.1 Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
3.5.4.2 Ethernet Socket Allocation in the DECT IP Base Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
3.5.5 Tools/Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.5.6 Outdoors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.5.6.1 Preparatory Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
3.5.6.2 Pole Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

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Contents
3.5.6.3 Wall Mounting without Installation Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4 Putting Into Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
4.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5 Configuration Hints for PBXs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.1 OpenScape Business (OSBiz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.1.1 Base Configuration - OSBiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.1.2 INT-DM Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5.1.3 Station Configuration - OSBiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5.1.3.1 Step 1 - User Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5.1.3.2 Step 2 - Workpointclient Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5.1.4 Station Configuration - INT-DM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5.2 OpenScape 4000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5.2.1 Base Configuration - OpenScape 4000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
5.2.2 Station Configuration - INT-DM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
5.3 OpenScape Voice (OSV) V9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5.3.1 General - OSV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5.3.2 Base Configuration - OSV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
5.3.3 Station Configuration - INT-DM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
5.3.4 Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6.1 CIPv2 specific data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6.2 Base Stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
DECT manager and base stations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Base station operational states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
DECT manager (without DECT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
6.2.1 PoE Injector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
6.3 Item Number Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
6.4 Measuring Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
7 Diagnosis and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7.1 Checking the Base Stations and the Radio Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7.1.1 Base Stations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
7.1.2 Quick Verification of Area Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
7.2 Testing the Radio Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7.2.1 Significance of Results Obtained . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7.2.2 Gigaset Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
7.2.2.1 Activating Measuring Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
7.2.2.2 Deactivating Measuring Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
7.2.3 Documentation of Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
7.3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
7.3.1 Checking OpenScape Cordless IP Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
7.3.2 What Happens If ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
7.3.2.1 Synchronism Symbol on Handset Display:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
7.3.2.2 Handset Cannot Be Reached. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
7.3.2.3 Connection Handover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
7.3.2.4 Handset: Problems Logging On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

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Contents

Introduction and Important Notes
c01.fm
Safety Information and Warnings
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1 Introduction and Important Notes
1.1 Safety Information and Warnings
Work on communication systems and devices may only be carried out by
qualified persons.
For the purposes of safety information and warnings, qualified persons are
persons who are authorized to place into operation, ground, and label systems,
devices, and lines in accordance with applicable safety procedures and
standards.
It is absolutely essential that you read and understand the following safety infor-
mation and warnings before starting installation and implementation work on the
communication system or device.
You should also carefully read and observe all safety information and warnings
on the communication systems and devices themselves.
Familiarize yourself with emergency numbers.

c01.fm
Introduction and Important Notes
Safety Information and Warnings
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OpenScape Cordless IP V2, Service Documentation 7
Types of safety information and warnings
The following grades of safety information/warnings are used in this manual:
7
DANGER
Indicates an immediate danger that could result in death or serious injury.
7
WARNING
Indicates a general danger that could result in death or serious injury.
7
CAUTION
Indicates a danger that could result in injury.
NOTE: Indicates situations that could result in damage to property and/or loss of
data.
Symbols for specifying the source of danger more exactly
The following symbols are not usually used in the manual. They explain symbols
that may be depicted on the communication systems and equipment.
•

Introduction and Important Notes
c01.fm
Correct Use
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1.2 Correct Use
The communications system may only be used for the purpose described in this
document and only in connection with the additional devices and components as
recommended and permitted by Unify GmbH & Co. KG.
The proper use of the communications system assumes correct
transport,storage, assembly and setup as well as careful operation and mainte-
nance.

c01.fm
Introduction and Important Notes
Proper disposal and recycling
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1.3 Proper disposal and recycling
All electrical and electronic products should be disposed of
separately from the municipal waste stream via designated collection
facilities appointed by the government or the local authorities.
The correct disposal and separate collection of your old appliance will
help prevent potential negative consequences for the environment
and human health. It is a precondition for reuse and recycling of used
electrical and electronic equipment.
For more detailed information about disposal of your old appliance,
please contact your city office, waste disposal service, the shop
where you purchased the product or your sales representative.
The statements quoted above are only fully valid for equipment which
is installed and sold in the countries of the European Union and is
covered by the directive 2002/96/EC. Countries outside the
European Union may have other regulations regarding the disposal
of electrical and electronic equipment.
Used accumulators and batteries with this sign are valuable
economic goods and must be recycled. Used accumulators and
batteries that are not recycled must be disposed of as hazardous
waste with full observance of all regulations.

Introduction and Important Notes
c01.fm
Standards and Guidelines on Installation
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10 OpenScape Cordless IP V2, Service Documentation
1.4 Standards and Guidelines on Installation
1.4.1 Labeling
The compliance of the equipment according to EU directives is
confirmed by the CE mark. This Declaration of Conformity and,
where applicable, other existing declarations of conformity as
well as further information on regulations that restrict the usage
of substances or affect the declaration of substances used in
products can be found in the Unify Expert WIKI at
http://wiki.unify.com under the section “Declarations of
Conformity”.
This device has been manufactured in accordance with our
certified environmental management system (ISO 14001). This
process ensures that energy consumption and the use of
primary raw materials are kept to a minimum, thus reducing
waste production.

c01.fm
Introduction and Important Notes
Data Protection and Data Security
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1.5 Data Protection and Data Security
This system processes and uses personal data for purposes such as call detail
recording, displays, and customer data acquisition.
In Germany, the processing and use of such data is subject to various regulations,
including those of the Federal Data Protection Law (Bundesdatenschutzgesetz,
BDSG). For other countries, please follow the appropriate national laws.
The aim of data protection is to protect the rights of individuals from being
adversely affected by use of their personal data.
In addition, the aim of data protection is to prevent the misuse of data when it is
processed and to ensure that one’s own interests and the interests of other
parties which need to be protected are not affected.
The customer is responsible for ensuring that the system is installed,
operated and maintained in accordance with all applicable labor laws and
regulations and all laws and regulations relating to data protection, privacy
and safe labor environment.
Employees of Unify GmbH & Co. KG are bound to safeguard trade secrets and
personal data under the terms of the company’s work rules.
In order to ensure that the statutory requirements are consistently met during
service –whether on-site or remote –you should always observe the following
rules. You will not only protect the interests of your and our customers, you will
also avoid personal consequences.
A conscientious and responsible approach helps protect data and ensure
privacy:
•Ensure that only authorized persons have access to customer data.
•Take full advantage of password assignment options; Never give passwords
to an unauthorized person orally or in writing.
•Ensure that no unauthorized person is able to process (store, modify,
transmit, disable, delete) or use customer data in any way.
•Prevent unauthorized persons from gaining access to storage media, such as
backup CDs or log printouts. This applies to service calls as well as to storage
and transport.
•Ensure that storage media which are no longer required are completely
destroyed. Ensure that no sensitive documents are left unprotected.
Work closely with your customer contact; this promotes trust and reduces
your workload.

Introduction and Important Notes
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1.6 Documentation Feedback
If you have questions that are not answered by this document:
•Internal employees should contact their National Support Center.
•Customers should contact their retailer or the Unify Customer Support
Center.
When you call, please state the title and ID number of the document.
Example:
•Title:OpenScape Cordless IP V2, Service Documentation
•IDnumber:A31003-C1020-S100-01-7620

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2 Overview
The OpenScape Cordless IP solution extends the scope of the DECT standard
introduced for voice communication, making it now available for Voice over IP
infrastructures.
The radio range covered by the OpenScape Cordless IP system is made up of
DECT IP base stations that together form either an seamless network of
overlapping and synchronous radio cells or individual radio islands. The size of a
radio cell depends on local/structural factors.
Voice over IP infrastructures are connected via the SIP protocol. In their capacity
as mobile communication solutions, DECT radio cells are therefore an optimal
enhancement to SIP-compliant Voice over IP systems.
The DECT IP base stations support seamless handover in ongoing voice
connections, that is, moving from one radio cell to another during a call with a
DECT handset. The roaming function is also available for mobile stations.
OpenScape Cordless IP also supports the DECT protocol GAP (Generic Access
Profile) and the radio protocol PN-CAP. The basic function scope required by
ETSI is thus extended to include a number of Unify-specific features.
Figure 1 General Overview of the DECT Manager & Integrator

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The OpenScape Cordless IP System contains the following main components,
see also Figure 1:
• Handsets(mobile services): Per DECT manager, 250 handsets can be
connected by roaming and 60 DECT calls could be made simultaneous
for VoIP calls, network directory sessions and info center
sessions.Subscribers can accept or initiate calls in all DECT cells with
their handset (Roaming), and can also switch between the DECT cells
during a call (Handover). A handover is only possible if cells are
synchronised.
• BSIP2: DECT Base stations
• Provide cell site DECT functions
• Provide media processing from handset directly towards PBX
• Provide up to 12 DECT full slot pairs (zero blind slot)
• Provide up to 6 DECT long slot pairs (wideband)
• DECT Manager: Management unit for a group of base stations.
• DECT Integrator: Central management and configuration unit of the
DECT multicell system.The DECT integrator:
• Integrates the handover domains managed by multiple DECT managers
to one roaming domain
• Contains the central DECT subscriber database
• Provides a web user interface for subscriber configuration
• Provides access to the configuration for all DECT managers and the
base station synchronisation hierarchy
• Acts as provisioning server for DECT registration and IP registration
• Integrates multiple DECT manager to one roaming domain (future
installation)
In small and medium installations the Integrator and DECT manager are
located on the same device.
• Communication System (OpenScape Business, OpenScape 4000,
OpenScape Voice): You can connect your DECT telephone system to a
communication system for VoIP, ISDN or analogue telephony,e.g.,
• A communication system from a manufacturer
• A communication system over the Internet
The Communication System
• Establishes the connection to a public telephone network
• Enables central management of telephone connections, directories,
network mailboxes

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2.1 Introduction
The OpenScape Cordless IP solution is designed as a DECT system with an SIP
interface to the communication server.
2.1.1 DECT IP Base Station (BSIP2)
DECT IP base stations combine to form a network of radio cells. Roaming
between radio cells is possible for DECT handsets during a voice connection if
the radio cells are synchronized and overlap.
DECT IP base stations come with all necessary software for the DECT and IP
functions.
2.1.2 DECT Manager & Integrator
DECT Manager is a Management unit for a group of base stations. At least one
DECT manager must be used for each installation. The DECT manager:
•Enables division into subnets (Cluster formation)
•Manages bases station synchronisation within the clusters
•Provides application gateway between SIP signalling and DECT
signalling
•Controls the media path from PBX to relevant base stations
The current version only supports the use of one DECT manager.
DECT Integrator is the central management and configuration unit of the DECT
multicell system.The DECT integrator:
•Integrates the handover domains managed by multiple DECT managers
to one roaming domain
•Contains the central DECT subscriber database
•Provides a web user interface for subscriber configuration
•Provides access to the configuration for all DECT managers and the base
station synchronisation hierarchy
•Acts as provisioning server for DECT registration and IP registration
•Integrates multiple DECT manager to one roaming domain (future
installation)
In small and medium installations the Integrator and DECT manager are located
on the same device.

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Base Station Synchronization
Synchronization and the logical structuring of the base stations in clusters are
prerequisites for the functioning of the multicell system, the radio connection
between base stations and mobile phones and the handover. To carry out the
synchronisation you will need the plan of the clusters with the synchronisation
level for each base station.
Base stations can be synchronised "over the air", meaning that they are
synchronised via DECT.If the DECT connection between specific base stations
seems to be not reliable enough, synchronisation can also take place via LAN.
Synchronization planning
Base stations that combine to form a DECT wireless network must synchronize
with one another to ensure a smooth transition of the handsets from cell to cell
(handover). No handover is possible between cells that are not synchronized.
They are synchronized via what is known as an air interface, i.e. via the DECT
wireless network or via LAN. In the case of DECT synchronization, the signal
strength between neighbouring base stations must be sufficient for
synchronization.
NOTE: Synchronization always refers to a cluster. In case you set up several
clusters that are not synchronized with one another, there will be no possibility of
a handover between them.
Sync master/slave: The synchronization within a cluster takes place in a master/
slave procedure.
This means that one base station (sync master) defines the synchronization cycle
for one or more other base stations (sync slaves). You have to set up a
synchronization hierarchy comprising all base stations of a cluster.
Sync level: During configuration, assign one level in the synchronization
hierarchy (sync level) to each base station. Sync level 1 is the highest level; this
is the level of the sync master and appears only once in each cluster. A base
station always synchronizes itself with a base station that has a better sync level.
If it sees several base stations with a better sync level, it synchronizes itself with
the base station that has the strongest signal. If it does not see any base station
with a higher sync level, it cannot synchronize.
LAN master/slave: If the DECT connection between two base station seems to
be not reliable enough to permanently guarantee a stable DECT over the air
synchronization and a trouble-free handover, you can determine, that

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synchronization should occur via LAN. In this case the base station with the
higher sync level will act as LAN master, the base station with the lover sync level
is a LAN slave. Currently, the LAN master must be on Sync level 1.
NOTE: The LAN master functionality must be explicitly activated (otherwise the
LAN slaves won't work).
In contrast to over-the-air synchronization, LAN-based synchronization requires
less configuration.
On the other hand, high demands are placed on Ethernet characteristics such as
symmetry, packet loss, delay, jitter (primarily delay variation). All of the Ethernet
components involved (especially the switches) therefore have to fulfill special
requirements. If thresholds are exceeded (primarily jitter), this leads to loss of
synchronization, which in turn leads to a resynchronization process. No calls can
be conducted on the relevant DECT IP base station during this process.
PTP messages are exchanged only between the DECT IP Base stations.
DECT IP Base stations who are e.g. separated by iron doors cannot synchronize
each other over the air can use instead PTP.
For PTP, the underlying network must fulfill some restrictions like very little delay,
i.e., no routers or NAT devices (see chapter Section 2.4).
A combination of air and LAN synchronization is possible in a cluster of
synchronous DECT IP base stations.
Advantages of LAN synchronization compared with over-the-air synchronization:
•Greater flexibility in the arrangement of the base stations as no
synchronization chains need to be formed.
•Fewer DECT IP base stations required as the overlapping area of the DECT
IP base stations is smaller.
•Configuration of the system is simplified as all DECT IP base stations can be
synchronized on one synchronization master.
In the event of loss of synchronization, the DECT IP base station stops accepting
calls once all ongoing calls that were being conducted on the asynchronous
DECT IP base station have ended and then it re-synchronizes the asynchronous
DECT IP base station.

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Figure 2 Optimum system synchronization over DECT at synchronization
over the air
Standard synchronization
Alternative synchronization if standard synchronization fails
Figure 3 Not optimally synchronized, each DECT IP base station has only one
synchronization partner

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Figure 4 The two lower DECT IP base stations are synchronized over LAN
because a solid fire door prevents DECT-based synchronization.
The quick passage of data through a fire door cannot always
guarantee reliable DECT synchronization.

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2.1.2.1 Communication Interfaces
The following picture gives an overview of the protocols used between DECT
Handset, DECT IP Basestation, DECT Manager & Integrator and the
communication server.
Figure 5 Protocols of the path between Handset and Communication Server
Figure 6 Depicts all communication channels of the DECT Manager &
Integrator System
The following list gives an overview of all communication-channels within the
DECT Manager & Integrator:
DECT Handset - User: Gigaset professional DECT Handsets with PN-CAP
functionality