TEMS Discovery_Training Slides

TEMS DISCOVERY Introduction January 2010, © Ascom 1

TEMS DISCOVERY- Introduction

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AGENDAOverviewGetting StartedFeatures Walk-ThroughProfessional FeaturesUse Cases


WHAT IS TEMS™ DISCOVERY?

New post processing tool within the Ascom TEMS portfolio. Designed for network optimization and trouble

shooting but can also be used for benchmarking and QoS verification Flexible tool that is easy to adopt to the working

process.Automated data processingUser defined KPIsInbuilt reporting

Excellent post processing solution for TEMS Investigation and TEMS Pocket

[ OVERVIEW ]


TECHNOLOGY SUPPORT

IS-95/cdma2000 1x

EV-DO (Rev. 0/ Rev. A)

GSM/GPRS/EDGE

WCDMA/HSDPA/HSUPA/HSPA+

TD-SCDMA

WiMAX

LTE

[ OVERVIEW ]


TEMS DISCOVERY 1.0 PACKAGES

Standard package Includes all views (map, time chart, messages, problem summary, histogram, etc) Efficient processing and reporting Instant access to Information Elements Easy embedding of expertise

Professional package Highly customizable Includes integrated Google Earth Allows definition of your own KPIs Provides more extensive processing and reporting

[ OVERVIEW ]


PACKAGE COMPARISON

TEMS Discovery TEMS Discovery Professional

Intuitive graphical user interface X X

Drive test data processing:Multi-technology, multi-device and multi-source

X X

Unrivalled GIS data support: more than 110 different formats X X

Support for all types of TEMS logfiles X X

Comprehensive Data Processing: ~3000 available IEs and 500+ predefined events

X X

Easy Report Builder Deploys report templates throughout the organization

X

Extensive Script BuilderGenerate your own specific KPI, events and metrics for the whole organization

X

Automatic data processing: For processing, report generation and e-mail notification of newly arrived data

X

Embedded Google Earth for visualizing of metrics, events, or customized KPIs X

Advanced site and cell configuration management X

[ OVERVIEW ]


DEPLOYMENT SCENARIOS

[ OVERVIEW ]


Regional Data Processors

Internet or Intranet

Legend

TEMS DiscoveryUsers



Optional High

Bandwidth LAN

Regular LAN

Internet Connection

Remote field users

Deployment Scenarios & Data Sharing

[ OVERVIEW ]

DEPLOYMENT SCENARIOS

TEMS DiscoveryUsersTEMS Discovery

Users




Legend



Optional High

Bandwidth LAN

Regular LAN

Internet Connection

Remote field users

Standalone Dongle Licensing

[ OVERVIEW ]

LICENSINGTEMS Discovery

Users

TEMS DiscoveryUsersTEMS Discovery

Users






Remote field users fetch license by designating server IP

Floating License Pool

With regional licensing server

[ OVERVIEW ]

LICENSING





iWINDAUsers

Remote field users

[ OVERVIEW ]

LICENSING




iWINDAUsers



Remote field users

Floating License Pool

With global licensing server

TEMS DiscoveryUsers

TEMS DiscoveryUsers


DATA ORGANIZATION AND MANAGEMENT

Each raw test file only needs to be processed once

Processed data provides highly organized information

Data is instantly accessible

Unlimited number of composite data sets

Incremental merging of new data with existing data

Data can be shared across the organization

Old data can be easily archived (and restored if needed)

[ OVERVIEW / KEY FEATURES ]


DATA ORGANIZATION AND MANAGEMENT

Projects organized in Private and Public folders

Each project may contain Datasets, Composite datasets, and Archives

Each Dataset contains logfile data easily organized by operator, device, IMSI, processing date, etc



VERSATILE DATA BINNING

Time binning during data import Frame level resolution

Smart selection

- No binning for event-triggered messages

- Binning for periodical messages

Geo-binning Distance binning

Grid binning

Per-region mixed resolution (for example, fine resolution in dense urban areas and coarse resolution in rural area)

Holes within regions



RICH DATA PRESENTATION

Conventional views

Data explorer

Map Views

Time Series Chart

Message View

Table View

Histogram (Bar/Pie Chart)

Report View

Layer 3 IE browser



COMPREHENSIVE GIS DATA SUPPORT

Terrain Elevation Data

Raster Images

Vector Data

Approximately 100 commonly-used GIS file formats Wide selection of free or low-cost yet high-quality

data available (as shown)

Capable of automatic merging of GIS data with different sources, formats, and projections



GIS DATABASE ACCESS

Integrated online access to multiple free GIS databases

USGS TerraServer High-resolution terrain elevation data, aerial, or

satellite images

Free downloading of data for TEMS Discovery default boundary or any user-defined area

Google Maps™

Web links to popular web sites for free or low-cost GIS data sources



TEMS DISCOVERY DIFFERENTIATORS

Flexible user interface

Multiple sub-views for easy side-by-side comparison

Metric correlation

Completely customizable: Report templates

Key Information

Sets of Point Detail configuration

Documents

Analysis Sets

View layouts



REPORT BUILDER* All TEMS Discovery events and metrics Full array of statistical attributes

Drag and drop to any desired cells

All Microsoft Excel functions Formula, Equation

Styles

Charting

Data filtering per any file/device attributes Operators: for benchmarking

Date: for trending

Uses universal templates or specific data

Integrated maps


* Professional version only


SCRIPT BUILDER* On-demand data extraction and

intelligence embedding

Simple drag-n-drop access to All metrics

All IEs in layer 3 messages

On-demand data extraction and manipulation

Generation of any metrics, events, filtering criteria

Embedding of proprietary algorithms for standardization across the organization

Scripting in C#/C/C++ syntax





AUTOMATIC DATA PROCESSING*

Monitoring and processing of incoming data

Automatic creation of multiple projects and dataset according to user’s configuration

Automatic creation of KPI plots and reports

Automatic e-mail notifications to multiple recipients

Multi-computer distributed computing with automatic task dispatcher and load balancing

Multiple tasks can be configured

Easy and flexible configuration



AGENDAOverviewGetting StartedFeatures Walk-ThroughProfessional Features Use Cases


USER INTERFACE & TERMINOLOGY

[ GETTING STARTED ]



Projects:

A project is a holder used to organize the processed data from a geographic region.

TEMS Discovery loads the data once and saves the processed data permanently until removed

[ GETTING STARTED ]



A document defines the configuration settings of the specific data sources, displayed metrics, and view layouts.

Opening a TEMS Discovery document will restore almost all aspects of any saved information, except for the zoom level.

[ GETTING STARTED ]



GIS data includes vector data, raster images, and terrain elevation data.

Data from the same geographic region are grouped into a Geo-area, which can be referred to by one or more projects .

[ GETTING STARTED ]



Task Window lists the status of background tasks that are created by importing data or configuring automatic data processing.

[ GETTING STARTED ]



Message Log contains the message generated from the current operation, which can be Report Generation, Script Execution, etc.

[ GETTING STARTED ]


OPEN A PROJECT...

[ GETTING STARTED ]


PROJECT WORKSPACE...

[ GETTING STARTED ]


EXPLORER & CO...

[ GETTING STARTED ]


EXPLORER - DATASET

The Data Set tab displays drive test data in logical groups: Archived, Composite, and Data Sets.

Except for the archived dataset, each group is in a tree view layout that can be drilled down to the metric level.

[ GETTING STARTED ]


EXPLORER - CELLS

The Cells tab is the logical display of imported network configurations, sector groups, and sector filter expressions.

[ GETTING STARTED ]


EXPLORER – GIS/COVERAGE MAP

The GIS window lists all GIS data associated with the current project.

The GIS data can be displayed in Map View by dragging and dropping, or choosing it from its pop-up menu

[ GETTING STARTED ]


LEGEND

The Legend View displays the plot band information of metrics that are drawn in the Map View and Time Chart.

Here, you can show or hide a particular metric from display by selecting or de-selecting the corresponding metric title.

[ GETTING STARTED ]


POINT DETAILS

The Point Detail View provides a convenient way to overview detail information from a particular time or location.

By moving the cursor into the Map View and Time Chart, or by changing the row selection in the spreadsheet of Message View and Table View, the detail information will be displayed here.

Use pre-defined configurations or create a new.

[ GETTING STARTED ]


PROJECT PROPERTIES

Under this tab you find general information regarding the current project, regarding GIS, UDR (User Defined Region), and cell configuration data.

[ GETTING STARTED ]


SYNCHRONIZABLE & SUMMARY DATA VIEWS

[ GETTING STARTED ]


SYNCHRONIZABLE VIEWS

Synchronizable viewssimultaneously display data that was collected at the same moment.

All of these views can be part of playing back drive test data.

Synchronizable views are:

Map View, Time-series Chart, Messages, Table View, Wave View, and Google Maps.

[ GETTING STARTED ]


SUMMARY DATA VIEWS

Summary data views are the views that present statistic data in various formats.

Those are: Metric Correlation, Histogram, Sector Statistic, Problem Summary, Batch PDF, and Report.

[ GETTING STARTED ]



Rearrange views by dragging-and-dropping…

[ GETTING STARTED ]



… to any position for any disposition…

[ GETTING STARTED ]



Split view into sub-views…

[ GETTING STARTED ]



Each view has its own individual toolbar with functions related to that specific view

[ GETTING STARTED ]


WALK-U-THROUGH SOME FEATURES AND VIEWS....

The following will be covered in this section:

Import of GIS map data

Creation of a new project

Import of drive test data (logfiles)

Cell configuration import

Organization of workspace and views

Analysis of drive test data with various views

Generation of report

[ FEATURES WALK-THROUGH ]


IMPORT OF GIS MAP DATA - PROCEDURE

Use the Walk-U-Through wizard (or Data Import button on toolbar)



IMPORT OF GIS DATA DIALOG

Click Add Files...



ADD FILES DIALOG

Browse for your file and click Open...



GIS FILE ADDED

Select the geo area to which you can connect the imported GIS data geographically, or create a new geo area

Click Import.



GIS DATA IMPORTED

The imported GIS data file (map) appears in the GIS/Coverage Map tab under GIS Data and the corresponding geo area, among other imported GIS data files.

From here, you can bring it into Map View by right-clicking it and selecting Send to Map View.



CREATE NEW PROJECT - PROCEDURE

Next step in the Walk-U-Through wizard



PROJECT PROPERTIES

Name your new project

Select the geo area you used for the imported GIS, and use that map as the default

Save your new project



PROJECT CREATED

The new project appears among the other projects, but contains no drive test data yet (DataSets is empty).

Right-click the project to rename, delete or open it (among other procedures).



IMPORT DRIVE TEST DATA - PROCEDURE




IMPORT DRIVE TEST DATA DIALOG

Click Add Files...



ADD FILES DIALOG

Browse for your files and click Open...



DRIVE TEST DATA ADDED

Select the project to which you want to import the data and name the dataset to which the data will belong.

Click Import.



DRIVE TEST DATA IMPORTED

The imported drive test data appears under the specified project and dataset.

The data can be organized and grouped by device, file name, etc



ORGANIZING THE IMPORTED DATA

Right-click the dataset and select File/Device Grouping By... and then a suitable attribute.



DRIVE TEST DATA GROUPED BY DEVICE



IMPORT CELL CONFIGURATION - PROCEDURE




IMPORT CELL CONFIGURATION DIALOG

Select the project to which you want to import the cell configuration

Browse for the cell configuration file to add

(Rename the cell configuration)

Click Import



EDIT DEVICE ATTRIBUTES - PROCEDURE




VIEW OR EDIT ATTRIBUTES

File/Device Grouping By... - Attributes!

Some are editable

New ones can be added



VIEW OR EDIT ATTRIBUTES

Right-click a device (for global changes to all files under that device) or a specific file and select View/Edit Device Attributes.

Edit button also works...



EDITABLE ATTRIBUTES (1)

Add your own notes or any other file specific info.

For global changes (to all files under specific device), right-click the device in the previous dialog.

Example:

MSx = Teamx

First file under each MS is before changes to network

Second file is after changes




First file for Team 2...




... before changes...



GROUP BY NOTES INSTEAD...



NEW GROUPING BY NOTES



READ-ONLY ATTRIBUTES

Read-only attributes for this specific file, collected from the file itself at import



USER-DEFINED GLOBAL ATTRIBUTES

Add your own attribute...



NEW EDITABLE ATTRIBUTE ADDED...



POPULATE THE NEW ATTRIBUTE (1)...

Suppose Team 1 has used MS1 and also produced the first logfile for MS3...




Team 1 allocated to all files under MS1.





Team 1 also to be allocated to first file under MS3...





Team 1 also allocated to first file under MS3...




NEW GROUPING BY DRIVE TEST TEAM (1)...



NEW GROUPING BY DRIVE TEST TEAM (2)...



CREATE COMPOSITE DATASET - PROCEDURE




CREATE/EDIT COMPOSITE DATASET

New grouping to facilitate creation of composite dataset...



CREATE/EDIT COMPOSITE DATASET

Drag-n-drop the files to the members of the group.

New composite dataset created and saved...



COMPOSITE DATASET CREATED

Composite datasets are treated as any ordinary dataset – only grouped/organized differently



GEOLOCATION BINNING - PROCEDURE



Make sure you select project and dataset…


GEOLOCATION BINNING DIALOG



FRAME GROUP CREATION



BINNED DATASET IN TREE STRUCTURE

Dataset 0105 still time binned as when imported.

New geobinned dataset binned according to your settings (region-by-region, by route distance, bin size 150 m, etc)



ANALYSIS - PROCEDURE

Select file to analyze for dropped calls

Then click Open Project




ANALYSIS OF DROPPED CALL, OVERVIEW



GENERATE REPORT - PROCEDURE

Select mobile/file for the report...


Next (last) step in the Walk-U-Through wizard


REPORT GENERATION DIALOG

Pre-defined and user-defined (if any) templates for selection.

Collection date filtering possible.



REPORT FILTERING OPTIONS

Site sector groups defined

Conditions defined (in Script Builder)

Filtering by defined UDRCluster indexing(connected to Report Builder)



GENERATED REPORT



VARIOUS VIEWS AND FUNCTIONS...


Walk-U-Through wizard complete...

Now, more details on views and functions..!


DISPLAY SITES

Drag-and-Drop...



DISPLAY METRIC

Let’s display also the geobinned data for same file...

D-n-D!

Data binned with 150 m bin size



DATA OFFSET

Click the Data Route Offset button to enable the offset function

On the Data Routes Distance button:

Left-click to increase (+) distance

Right-click to decrease (-) distance



SECTOR COVERAGE

Click the Sector Coverage Intellisense button to enable that function

On the sector of your interest:

Left-click to display coverage links

Right-click to clear links



SPIDER MOVE

Click the Spider Move button to enable that function

Move cursor over samples to display the serving sectors

Right-click in the map for context menu:

Freeze Data Point to Sector Links

Remove... (frozen links)



MISC MAP FUNCTIONS...

3D View of map

Terrain Path Profile for terrain map



USER DEFINED REGION (UDR)

Activate with toolbar button

Draw your region

With region selected: save, close, or delete it


USER DEFINED REGION (UDR) - PROPERTIES

Considered for filtering and/or geobinning

Hole can be exception when binning or filtering

Geobinning options if binning of this region


DATA FILTERED WITH REGION

Select Filtering region (Data Filter tab) under Dataset tab in Explorer

Drag-n-Drop metric to map

Samples displayed only within region


MAP VIEW OPTIONS

Map view options from toolbar...

Search for co-channel, co-PSC, etc


CELL CONFIGURATION VIEW OPTIONS


GROUPING SITES AND CELLS


TIME CHART


MESSAGES VIEW


MESSAGES VIEW – KEY INFO SETTINGS


MESSAGES VIEW – L3 BROWSER


HISTOGRAM VIEW


TABLE VIEW

Select configuration or create a new by DnD metrics into table, and save.


SECTOR STATISTICS VIEW

Select configuration or create a new by DnD metrics into table, and save.

Functions similar to Table View.

Selected sector is flagged in Map View.


METRIC CORRELATION VIEW

Higher fitting degree gives better fit but less linear...

Unifying scales in subcharts gives same start and end values, which might squeeze or stretch the curves...

Aggregation Curve Options specifies start and end values, step size, etc.Unifying scales...


PROBLEM SUMMARY VIEW

DnD the entire dataset into view, with certain problem set (collection of events to look for) selected.

One dropped call found, in file ...007_MS3 (same as in our Walk-U-Through)

Click Analysis Set button and select set

...and the analysis looks...


PROBLEM SUMMARY VIEW - ANALYSIS

...like this!

Identical to the analysis from Walk-U-Through...!


BATCH PDF VIEW – REPORT GENERATION

Pre-defined batch configurations, or user defined (in Batch Printing Tool – see next slide...)


BATCH PRINTING TOOL, WITH CONFIGURATION


SAVE YOUR WORK...

...and open again...

View Layout is arranged but non-populated views

The existing View Layouts can be selected when opening a project from context menu

Update an existing Analysis Set or create a new


REPORT BUILDER – SINGLE CHART

DnD metric into spread

Dialog appears with options


REPORT BUILDER – SINGLE CHART COMPLETE

Move mouse to form chart area and left-click to complete

Make (re-)selections from combo-boxes and/or enter text/values if applicable


REPORT BUILDER – CORRELATION CHART (1)

DnD first metric into spread




REPORT BUILDER – CORRELATION CHART (2)

DnD second metric into grey area



REPORT BUILDER – SINGLE CHART FOR SECTOR DURATION

DnD metric into spread




REPORT BUILDER – SINGLE CHART FOR SECTOR DURATION

Make (re-)selections from combo-boxes and/or enter text/values if applicable


REPORT BUILDER – DETAILS ADDED

Right-click in spread for context menu

Insert option in selected cell


REPORT BUILDER – TEMPLATE SAVED

Save report template


REPORT BUILDER - GENERATE REPORT

Generate Report on file/device/dataset

Select template and filtering options


REPORT BUILDER – EXCEL REPORT

Compare sector duration with Map View sector coverage...


SCRIPT BUILDER


SCRIPT BUILDER

DnD metric to Source Data column

Create Alias


SCRIPT BUILDER

Create new Event that will be triggered


SCRIPT BUILDER

Create new Metric that will be used in script


SCRIPT BUILDER

Create Report Variables to be reported (values displayed) when script is run:

DnD metric to right column

Name variable


SCRIPT BUILDER

Create script that fulfills the requirements


SCRIPT BUILDER

DnD!


AUTOMATIC DATA PROCESSING – SETUP (1)


AUTOMATIC DATA PROCESSING – SETUP (1) New task – processing (already imported data or) incoming data

Click and browse



Selection of which metrics to process

Same dialog as found from toolbar: Configuration/Metric Frame Import Configuration



Check and press Execute...


USE CASE 1:Getting started

Use the Walk-U-Through wizard (steps 1-4):

Import GIS: OpenStreetMap.gmp found under C: Users / xxx / Documents/ Ascom / TEMS Products / TEMS Discovery / iUser_Data / GeoData / LowerManhattan

Create a new project. Name it ”Training_<your name>”

Logfiles found under C: Program Files / Ascom / TEMS Products / TEMS Discovery / _DemoDiscovery / NYC_Data / tem_log

Site file found under C: Program Files / Ascom / TEMS Products / TEMS Discovery / _DemoDiscovery / NYC_Data / Cell_configuration

Open your new project and DnD metric WCDMA Cell Measurements / Categorized Ec/Io / A1, from MS3 in logfile with suffix _007, into the Map View.


USE CASE 2:Preparing Analysis

In order to simplify your analysis, some preparations can be done:

Add WCDMA Cell Measurements / Categorized Ec/Io / A1 and some other metrics to a Favorite group (right-click metric) for smooth scrolling, and filter out only those

DnD metric A1 also into Time Chart and the entire frame (WCDMA Cell Measurements) into Messages View

Change background color in the Time Chart

Apply Frame Filter ”WCDMA Active Set” in Messages View & filter out only those KeyInfo containing ”PSC = 8”. Search for parameter with ”active set” in detail view.

Save Document as ”Training_<your name>”

Close your project and then open your project again from Project Explorer

Close the project again and open the saved document from Document List, and compare the result with opening a project


USE CASE 3:Network Status

Open (if not already) your saved document containing your created project

Open Problem Summary View and DnD your entire dataset into it

Any problems found? Which types/how many? ........................................................

Analyze them – what seems to be the problem? ......................................................


USE CASE 4:Edit Device Attributes

Continue with step 5 (”Edit Device Attributes”) in the Walk-U-Through wizard

Expand your project and sort the dataset by device

Mark any device and add a new global attribute called Team

Allocate MS1 and MS2 to ”Team 1”, under Editable Attributes tab and Team attribute

Allocate MS3 and first file under MS4 to ”Team 2”

Allocate second file under MS4 to ”Team 3”

Sort your dataset by Team

Close the dialog and sort also your dataset by Team in Explorer. Works OK?


USE CASE 5:Create Composite Dataset

Continue with step 6 (”Create Composite Dataset”) in the Walk-U-Through wizard. Let us assume that changes have been done in the network and you want to sort drive test data according to ”before” (Team 1) and ”after” (Team 2 & 3) this change.

Expand your dataset and sort by Team

Create new composite dataset and name it ”Before change”

DnD Team 1 to members of the group on right-hand side. Save.

Create new composite dataset and name it ”After change”

Allocate both Team 2 and Team 3 to this group. Save and exit the dialog.

Back in the Explorer and Dataset tab, expand Composite and verify that your created composite dataset is present. You deal with this composite dataset just as with any ordinary dataset.


USE CASE 6:UDR - User Defined Region

With User Defined Regions (areas) created, you can sort your data by region and perform specific geolocation binning for specific regions.

With the Dropped Call Analysis still visible in the map (from Use Case 3), create a region covering the samples after the dropped call and name it ”Southern tip”. Locate it under GIS/Coverage Map tab in Explorer.

Remove the samples in the map by right-clicking and selecting Dataset – Remove Curves.

Under Dataset tab, apply filtering by your new region and DnD (from file ”...007_MS3”) again A1 from your favorite group into the Map View. Works OK?

Remove the samples again and apply no region filtering before DnD A1 once more. Works OK?

Remove (close) the region from the map and make it appear again...


USE CASE 7:Geolocation Binning

Continue with step 7 (”Geolocation Binning”) in the Walk-U-Through wizard.

Denote a suffix to your binned dataset

Specify 100 m bin size by route distance and apply this to your defined region ”Southern Tip” only

When completed, expand the binned dataset and DnD A1 into Map View. Works OK?

For more convenient display, separate the binned data samples from the others by applying Data Route Offset

Verify the bin size (100 m) with the measurement tool


USE CASE 8:Analysis

Continue with step 8 (”Analysis”) in the Walk-U-Through wizard.

Close your current (open) project

In the wizard, select your project, dataset and the mobile/file where you had problems according to Use Case 3.

Select an appropriate analysis set and press Open Project

What happens? Difference from Use Case 3?

Use Spider Move in the Map View and Point Details to find a possible solution to the Dropped Call problem


USE CASE 9:Report

Continue with step 9 (”Report”) in the Walk-U-Through wizard.

Keep the same Mobile as from Use Case 8 and press Generate Report

Select template WCDMA CS Call Sample Report under group Common

Apply no filtering

Generate report

Study the report


USE CASE 10:Create New Analysis Set

Open Google Earth and DnD metric WCDMA Rx Tx Power/Rx Power.

Save as Analysis Set with an appropriate name

Close the project

Back in the analysis step in the wizard, select the same project, dataset and mobile/file as in Use Case 8.

Select your new analysis set and press Open Project

What happens? Difference from Use Case 8?


USE CASE 11 (Professional version only):Create New Problem Set

Open Problem Summary View and study the current content of the Problem Set Definition combo box

Open the Report Template Builder and list the available Problem Sets

Mark the Dropped and Blocked calls set and notice the content to the right

Create a new Problem Set revealing (and named) ”Critical RF Conditions”, with events from GSM_WCDMA_Events in Metrics List

Select your new set in Problem Summary View and apply on your entire dataset

Any critical RF conditions? Which ones?

Study the device ”..._007_MS3” with an appropriate Analysis Set

During the worst condition (Weak Pilot Alert for PSC 8), what is the Top Active CPICH Ec/Io and Top Non-Active CPICH Ec/Io?


USE CASE 12 (Professional version only):Create New Report Template

Open Report Template Builder

Create a template with three different charts, according to the screen shots

Save it

Generate Report on one device

Study the report


LEGAL DISCLAIMER

This document contains specific forward-looking statements, e.g. statements including terms like“believe”, “expect” or similar expressions. Such forward-looking statements are subject to known andunknown risks, uncertainties and other factors which may result in a substantial divergence betweenthe actual results, financial situation, development or performance of Ascom and those explicitlypresumed in these statements.

Against the background of these uncertainties readers should not rely on forward-looking statements.Ascom assumes no responsibility to update forward-looking statements or adapt them to futureevents or developments.


THANK YOU!

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