SpectraLink IP-DECT Server 400, IP-DECT Server 6500, DECT Server 8000, DECT Server 2500 Synchronization And Deployment Manual

14169000-IG, Edition 11.0

January 2018, Original document

Spectralink IP-DECT Server 400/6500 and DECT Server
2500/8000

Synchronization and Deployment
Guide

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Contents

Introduction 5

Scope 5
Before You Begin 5
Related Documentation 6
Terminology and Acronyms 7

AboutSynchronization 10

Types of Synchronization 10

Off-site Planning, Prior to Visit 11

If Customer Wants to Replace Existing IP-DECT/DECT System 11

Is it an IP-DECT base station or a digital DECT base station? 11
Investigate Site 11
"Conclusion" 13

On-site Investigation 14

Aligning Expectations With Customers 14

On-site Deployment 15

Deployment Tools 15
Important Parameters 17
Deployment Rules of Thumb 19
IP-DECT Base Station using Radio Synchronization (Over The Air) 19

Deployment Procedure 20
Placement of Base Stations 22

IP-DECT Base Stations using LAN Synchronization and Digital DECT
Base Stations 24

Deployment Procedure 25
Placement of Base Stations 27

LAN BasedSynchronization 29

Precision Time Protocol Background 29
Deployment of Base Stations 30
Network Requirements 30

Multicast 31
Timing and Jitter 31
Network Topology 32
Traffic Load 32
Quality and Configuration of the Switches 33

Configurations and Administrations 34

IP-DECT/DECT Server System Settings 34
Base Station Individual Settings 34

14169000-IG, Edition 11.0
January 2018, Original document

Base Station Synchronization Status 35

Troubleshooting 36

Synchronization 36

14169000-IG, Edition 11.0
January 2018, Original document

14169000-IG, Edition 11.0
January 2018, Original document

5

Introduction

This guide is intended for qualified technicians who will deploy Spectralink IP-DECT/DECT Server
Solutions. To qualify to deploy a IP-DECT/DECT Server Solution, you must have understood and
completed the technical training successfully. This guide covers both 1G8 and 1G9 deployment.

Scope

The Synchronization and Deployment Guide provides instructions and best practices for deployment
of the following solutions:

l Spectralink IP-DECT/DECT Server 8000 and 2500

l Spectralink IP-DECT/DECT Server 6500 and 400

The purpose of this guide is to familiarize you with the procedures that are needed to carry out a site
survey as well as understand the requirements to ensure synchronization is successfully imple­mented. At the completion of this guide you should be comfortable with the following:

l Using a handset to measure and record Q - and RSSI values (RF values).

l Selecting a proper mounting location for base stations and repeaters.

l Making sure that the company LAN meets the LAN Synchronization requirement limits, and

documenting the deployment.

Before You Begin

This guide assumes the following:

l You have a working knowledge of deployment in general

l You have completed the technical training

SpectralinkIP-DECT Server 400/6500 and DECT Server 2500/8000 Synchronization and Deployment Guide

14169000-IG, Edition 11.0
January 2018, Original document

6

Related Documentation

For information about Server IP-DECT/DECT Server Solutions not covered by this manual, refer to
the following documentation:

Subject Documentation

Spectralink DECT Handset For more information about the handset,

refer to the user guide available online at

http://support.spectralink.com/products.

Site Survey Function in Handset For more information about the handset,

refer to the user guide available online at

http://support.spectralink.com/products.

Spectralink IP-DECT/DECT Server For more information about the server,

refer to the guide available online at

http://support.spectralink.com/products.

Spectralink Technical News Newsletter that describes software

changes, bug fixes, outstanding issues, and
hardware compatibility considerations for
new software releases. To subscribe, go to

www.spectralink.com.

Spectralink DECT Training material

SpectralinkIP-DECT Server 400/6500 and DECT Server 2500/8000 Synchronization and Deployment Guide

14169000-IG, Edition 11.0
January 2018, Original document

7

Terminology and Acronyms

The table below refers to common terms and acronyms that are related to the Spectralink IP­DECT/DECT solutions.

Term Definition

Deployment The act of locating the mounting location and installing base

stations and repeaters. System performance is dependant
on the deployment made - and, therefore, the survey per­formed.

Handover A process initiated by the handset in which the speech chan-

nel carrying an active conversation is passed from one base
station to another.

Erlang The erlang is a dimensionless unit that is used in telephony

as a measure of offered load or carried load on service­providing elements such as telephone circuits or telephone
switching equipment.

LED Light Emitting Diode

LI-Ion Lithium-Ion

Ni-MH Nickel -Metal Hydride

Q Value Signal Quality Factor value. An expression of the bit failure

rate in the communication between the handset and a base
station. The value has a max. of 64, equal to no bit errors
measured.

LAN synchronization Method for synchronizing IP base stations over LAN

Synchronization Over the Air (OTA) Method for synchronizing IP base stations over Air (radio)

SUOTA Software Update Over The Air

RF Radio Frequency

RSSI Value Radio Signal Strength Indication value. A relative expres-

sion for the signal strength of a base station as measured
by the handset at a given location.

Site survey A site survey comprises the act of locating the best places

for base stations by measuring RSSI levels with DECT
handsets. Complete survey consists of measuring with mul­tiple base stations, combining RSSI and Q value reading in
real surroundings.

SpectralinkIP-DECT Server 400/6500 and DECT Server 2500/8000 Synchronization and Deployment Guide

14169000-IG, Edition 11.0
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Term Definition

Speech channel A speech channel is used to carry communication between

the handset and the base station or repeater.

AC Authentication Code

ARI no. Access Rights Identity - Serial number of the (missing or

bad snippet).

CLI Command Line Interface

dB Decibels (deciBells)

DECT Digital Enhanced Cordless Telecommunications

DHCP Dynamic Host Configuration Protocol

DNS Domain Name System

e.i.r.p. Equivalent Isotropic Radiated Power

GAP Generic Access Profile

HW PCS Hardware Product Change Status - Hardware edition

IP Internet Protocol

IPEI International Portable Equipment Identity - Serial number

of the handset - SN

IWU Inter Working Unit

Spectralink IP-DECT Server Spectralink IP-DECT Server400/6500

Spectralink DECT Server Spectralink DECT Server2500/8000

LAN Local Area Network

MAC Media Access Control - hardware address of a device con-

nected to a network

MTU Maximum Translation Unit

MWI Message Waiting Indication

NIC Network Interface Card

NTP Network Time Protocol

PBX Private Branch eXchange

PCS Product Change Status (Edition)

PoE Power over Ethernet

SpectralinkIP-DECT Server 400/6500 and DECT Server 2500/8000 Synchronization and Deployment Guide

14169000-IG, Edition 11.0
January 2018, Original document

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Term Definition

PP Portable Parts - wireless handset

RSSI Received Signal Strength Indicator

RTP Real-time Transport Protocol

SIP Session Initiated Protocol

SW PCS Software Product Change Status - Software edition

TFTP Trivial File Transfer Protocol

UDP User Datagram Protocol

VoIP Voice over Internet Protocol

WLAN Wireless Local Area Network

WRFP Wireless Radio Fixed Part - Wireless Repeater

SpectralinkIP-DECT Server 400/6500 and DECT Server 2500/8000 Synchronization and Deployment Guide

14169000-IG, Edition 11.0
January 2018, Original document

10

AboutSynchronization

In a multi-cell DECT system the base station radios must be synchronized to each other in order to
achieve the optimum handover experience, when handsets are moving around among base sta­tions. Spectralink supports synchronization of digital DECT base stations via the wire and IP-DECT
base stations via the radio. Further, IP-DECT base stations can use corporate LAN for syn­chronization as well.

Types of Synchronization

l LAN Based Synchronization (Server 400/6500/2500/8000)

l Radio Based Synchronization (Over The Air) (Server 400/6500/2500/8000)

l Digital DECT Base Stations (Server 2500/8000)

Note:

Synchronization of digital DECT base stations is controlled by the server and
requires no configuration. Therefore, configuration of digital DECT base stations
will not be described further.

SpectralinkIP-DECT Server 400/6500 and DECT Server 2500/8000 Synchronization and Deployment Guide

14169000-IG, Edition 11.0
January 2018, Original document

11

Off-site Planning, Prior to Visit

Below you will find at list of questions and considerations to take into account during the planning
phase prior to visiting a site.

If Customer Wants to Replace Existing IP-DECT/DECT
System

Is it an IP-DECT base station or a digital DECT base station?

l IP-DECT base station:

o

Consider PoE, Active equipment, Switch PoE.

o

Is this reusable for the new system?

o

Do LAN switches support LAN synchronization?

l Digital DECT base station:

o

Can the cabling be reused? (yes/no/partly)

Investigate:

o

Is all cabling twisted pair end to end (recommended equal to CAT5e)? Is cabling
present where DECT coverage is needed?

o

Are all junction points of good quality?

o

From these investigations the costs to get cabling up to a satisfactory standard can be
estimated.

Note:

Today new systems can be a combination of wired and IP.

Investigate Site

l What is the site?

o

Are there more buildings?

o

If there are more buildings - consider the distance between the buildings, and whether it
is possible to establish synchronization between base stations.

o

Are there more sites (sub-sites)?

o

If there are several sites - the remote site(s) (i.e. those where it will not be possible to
establish synchronization) must be IP-DECT/DECT system(s).

l Study blueprints of building

SpectralinkIP-DECT Server 400/6500 and DECT Server 2500/8000 Synchronization and Deployment Guide