Aastra IntelliGate A150 User guide

Ascotel® IntelliGate® Communications Systems
A150
A300
2025
2045
2065
Ascotel® DECT System
System Manual

Ascotel® DECT System
2
syd-0196/1.1 – I7.6 – 10.2007
Content
1 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1 About the products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.2 About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.3 Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2 Ascotel® DECT System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3 Planning DECT systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1 Ascotel DECT and PBX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3.2 Coverage area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3.3 System characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.3.1 Radio characteristic of a radio unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.3.2 High-frequency propagation conditions. . . . . . . . . . . . . . . . . . . . . . . . . .14
3.3.3 Using external antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3.3.4 Using repeaters (relays) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3.4 Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3.4.1 Ascertaining customer requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3.4.2 Initial rough determination of the radio unit locations . . . . . . . . . . . .23
3.4.3 On-site measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
3.4.3.1 Preparing the measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
3.4.3.2 Measuring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
3.4.4 Installing the definitive System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
3.4.5 Re-measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
3.5 DECT Measuring Device ME-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
3.5.1 Test Handsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
3.5.2 Test radio units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
3.5.3 Operating modes of the handsets for test purposes. . . . . . . . . . . . . . .41
3.5.3.1 Look Around Mode” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
3.5.3.2 Show Measurement Mode" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
3.5.3.3 Show Handover Mode" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
3.6 Handset keyboard assignment (long-clicks) . . . . . . . . . . . . . . . . . . . . . .61

Ascotel® DECT System
3
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4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
4.1 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.1.1 Installing the radio units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
5.1 Configuring Ascotel DECT system parameters. . . . . . . . . . . . . . . . . . . . 68
5.2 Logging a handset onto the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
5.3 Logging a handset off the system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5.4 Logging a visitor handset on and off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6 Operation and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
6.1 LED on the radio unit Ascotel DECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
6.2 Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
6.3 Malfunctions of the DECT radio unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
6.4 Overload code displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7 DECT Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
7.1 GAP functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
7.2 Radio units, handsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
8 Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

Ascotel® DECT System
4 Safety Information
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1 Safety Information
1.1 About the products
Purpose and function
Ascotel® IntelliGate® is an open, modular and comprehensive communication
system that comprises the IP PBX, a multitude of expansion cards and modules, and
a complete series of system terminals including IP system terminals.
The system and all its parts were designed to cover the full spectrum of
communication requirements of businesses and organizations using a single
convenient solution. The individual parts of the system as a whole as co-ordinated
and may not be used for other purposes or replaced by outside parts (unless for the
connection of other approved networks, applications and terminals to the
interfaces provided specially for that purpose).
Exclusion of Liability
Ascotel® IntelliGate® is manufactured in accordance with ISO 9001 quality
instructions. The relevant user information has been compiled with the utmost care.
The functions of the product and of all part products have been checked and
released as a result of extensive approval tests. Nonetheless errors cannot be
entirely excluded. The manufacturers shall not be liable for any direct or indirect
damage that may be caused by incorrect handling, improper use, or any other faulty
behaviour on the part of a product. Potential areas of particular risk are signalled in
the appropriate sections of the user information. Liability for loss of profit shall be
excluded in any case.
1.2 About this document
This document describes the system characteristics the planning procedure for an
Ascotel® system DECT. It is intended for planners, installers and system managers of
telephone installations. Knowledge of this document is essential to the successful
operation of a DECT system. The features, installation, configuration, expansion
stages and system limits, the operation and maintenance, the network interfaces
and terminals, and the possibilities for networking several systems into a private
network (PISN) or an Ascotel IntelliGate Net (AIN) are not part of this Manual. They
are described in separate documents.

Ascotel® DECT System
Safety Information 5
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The System Manual is available only in electronic form as a document in Acrobat
Reader format, and can be printed out. Navigation in PDF format is based on the
bookmarks, table of contents, cross references and index. All these navigation aids
are linked, i.e. a mouse click takes you directly to the corresponding places in the
Manual. We have also ensured that the page numbering in the PDF navigation
corresponds to the page numbering of the Manual, making it much easier to jump
to a particular page.
The document is available in the following languages: German, English, French and
Italian.
You can download this document as well as related documents and help systems
with further information (see http://www.aastra.com/docfinder. More information
on the system can be found at http://www.aastra.com or in your dealer’s
documentation and homepage. It is your responsibility to inform yourself about the
project planning, expansion stages, system limits, installation, functional scope,
operation, running and maintenance.
Check to make sure you are in possession of all the user information available for
your system, that it corresponds to your version of the system, and that it is up to
date.
Read through the user information carefully before putting the system into
operation.
Keep the user information in an easily accessible place and refer to it whenever
uncertainties arise when operating the system.
Document information
• Document number: syd-0196
•Documentversion:1.1
• Valid as of system: I7.6
• © 10.2007

Ascotel® DECT System
6 Safety Information
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1.3 Considerations
Safety Considerations
Special hazard alert messages with pictograms are used to signal areas of particular
risk to people or equipment.
Hazard
Failure to observe information identified in this way can put people and
hardware at risk through electrical shock or short-circuits respectively.
Warning
Failure to observe information identified in this way can cause a defect to
the product or to a module.
Warning
Failure to observe information identified in this way can lead to damage
caused by electrostatic discharge.
General Considerations
Special symbols for additional information and document references.
Note
Failure to observe information identified in this way can lead to
equipment faults or malfunctions or affect the performance of the system.
Tip
Additional information on the handling or alternative operation of
equipment.
See also
Reference to other chapters within the document or to other documents.
Ascotel IntelliGate Net:
Particularities that have to be observed in an AIN.

Ascotel® DECT System
Ascotel® DECT System 7
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2 Ascotel® DECT System
One or more radio units are required to be able to operate DECT handsets on the
Ascotel® IntelliGate® system. They are connected to one or two AD2 interfaces. They
are powered either via the AD2 or locally using separate plug-in power supply units.
Office handsets as well as GAP-mode DECT handsets by outside manufacturers can
be logged on to a radio unit.
Fig. 1: DECT radio unit and Office handsets
Tab. 1: Ascotel® DECT radio units
Certain restrictions need to be taken into account if the SB-4+ / SB-8 / SB8ANT radio
units are operated on systems with a PBX software version older than 6.20 (see
"DECT Compatibility", page 76).
Features SB-4+ SB-8 SB-8ANT
Number of simultaneous call connections 4 81)
1) Only in mode 1 (Zero-Blind-Slot mode), which must also be supported by the handsets (Office 135,
Office 160, includes any GAP terminals)
81)
Number of AD2 interfaces required 1 12) or 2
2) Only 4 call connections are possible simultaneously in the event of a connection via one AD2 interface
12) or 2
Status display with LED ✔✔✔
Disconnectable LED display (normal mode) ✔✔✔
Automatic upload of new system software ✔✔✔
Plug-in power supply unit for local power supply ✔✔✔
Power requirements from PBX with local power supply to RU <100 mW <100 mW <100 mW
Max. length of AD2 bus3) for operation without local plug-in
power supply unit
3) For wire diameter 0.5 mm
1200 m 1200 m 1200 m
Alarm following the failure of a local plug-in power supply unit ✔✔✔
External antenna connections – – 2
GAP compatible ✔✔✔
IB[BBYYG
Radio unit (RU)
Office 135/135pro Office 160pro/Safeguard/ATEX

Ascotel® DECT System
8 Planning DECT systems
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3 Planning DECT systems
The following sections take you through the planning procedure for an
Ascotel DECT system (DECT: Digital Enhanced Cordless Telecommunications). It
contains recommendations on the project sequence and on handling the
measuring equipment. Unless otherwise specified, these considerations apply to
DECT radio units operated with the integrated antenna. The SB-8ANT radio unit
with two external antenna connections is provided for special requirements or
difficult topographical conditions (see "Using external antennas", page 17).
New planning
A wide range of subjects have to be clarified in depth with the customer before
planning a DECT system. DECT systems are very high-performing, which is why they
need to be explained in detail. The better customers are informed, the more they
will use the system’s features, which inturn means the application will be used more
efficiently.
The following points are to be observed in general:
• Radio coverage area, capacity in terms of the number of connections
• Known problem areas and what to do about them
• Handover behaviour and what happens during a handover
• Cordless groups and other features
Project extension
There are different types of extension:
• Additional handsets without a notable increase in traffic
– only new entries in the PBX numbering plan
• Additional handsets with an increase in traffic
– entries in the PBX numbering plan
– Existing radio cells, possibly needing to be reinforced with additional radio
units (warning: radio cells become smaller, resulting in a shift in the handover
limits)
– Radio units may need to be distributed to other location areas
• Coverage required over a greater area

Ascotel® DECT System
Planning DECT systems 9
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System installation
Once determined, the locations must be observed precisely in order to obtain
reproducible results. There are always surprising effects in practice, due for example
to cells being set up with several radio units (rather than the one cell originally
planned and surveyed). If for example masts are used as mounting structures and
fitted on both sides with radio units, conditions on either side of the mast will be
different.
Re-measuring the Installed System
Before the system can be handed over to the customer, the measurements need to
be verified and compared with the values of the original measurement (see "Re-
measuring", page 36).
Documentation
The system documentation is an essential requirement. This applies to both the
planning and the execution phases. To this end all the data is recorded and set out
in a final written version. Modifications and updates must also be documented.
This documentation can then be used as reference in the event of project
extensions, enquiries or other matters.
3.1 Ascotel DECT and PBX
The Ascotel DECT system allows users to make and receive telephone calls
anywhere on the company premises without being tied down by hard-wired sets.
Several radio units form a network of coverage ranges within which a user is able to
move freely.
The components of an Ascotel DECT system comply with the conditions of the
"Digital Enhanced Cordless Telecommunications"standard (DECT). This standard
regulates in particular the conditions on the high-frequency radio link and the
signalling between handsets and radio units.
Besides system handsets it also possible to operate the installation using products
that support the GAP (Generic Access Profile) standard. GAP defines a restricted
functionality, thereby also supporting the handsets of other manufacturers. GAP
handsets cannot be used for measuring purposes.

Ascotel® DECT System
10 Planning DECT systems
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3.2 Coverage area
The supply range of an Ascotel DECT system can include many different types of
geographic geometry. In most cases the bulk of the supply range is inside buildings.
A DECT system always relates to a PINX (Private Integrated Exchange) in a PISN
(Private Integrated Services Network). Handover to a neighbouring DECT system in
another PINX never occurs, even if the handset is logged on in both systems.
However, the planning can be carried out for both systems as the measuring
equipment is used without PBX.
The following explanations describe the situation with a single DECT system.
Fig. 2: Examples of the positioning of radio units inside buildings

Ascotel® DECT System
Planning DECT systems 11
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Topology
A radio system supplies a specific area. This area is known as the supply range. In
practice home users are able to receive a variety of autonomous DECT systems
(e. g. Ascotel DECT, cordless DECT phones, etc.). An Office handset can be logged on
in up to four autonomous DECT systems. The supply ranges for these independent
DECT radio systems can also overlap.
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Ascotel® DECT System
12 Planning DECT systems
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Location areas
Location areas are used to divide the radio area into as many as four locally
subdivided supply ranges. The system knows the location area in which a handset
is located and only needs to send messages to the handset within that location area.
Location area partitioning helps to reduce the system load caused by the signalling
of incoming calls.
Fig. 4: Example of location areas
Distributing radio units among several location areas only makes sense as of a
certain system size. The radio units are allocated by means of configuration. For a
description of the best way to group the radio units of a system in location areas, see
page 30 ff.
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Ascotel® DECT System
Planning DECT systems 13
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3.3 System characteristics
3.3.1 Radio characteristic of a radio unit
The coverage range of a radio unit depends among other things on the antenna
through which the radio signal is transmitted. The radio units transmit through two
integrated antennas inside the housing. The radio characteristic of internal
antennas is virtually spherical (with only transmission to the rear slightly
diminished), in other words registered handsets are able to move away from the
radio unit the same distance in every direction without the radio signal breaking up.
This does not take account of the topology that attenuates the signal’s propagation.
Fig. 5: Spherical radio characteristic of a DECT radio unit
The radio characteristic within the area to be covered is influenced by the objects
and materials located in the buildings. The spherical radio characteristic is therefore
deformed accordingly depending on local circumstances.
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Ascotel® DECT System
14 Planning DECT systems
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Fig. 6: Radio characteristic through obstacles to radio propagation
3.3.2 High-frequency propagation conditions
For a better understanding of the explanations on physical conditions given in the
following sections, we first need to take a look at the basic principles of high-
frequency propagation.
The method under discussion here is DECT standard. It operates in the frequency
range of 1880...1900 MHz and provides 120 communication channels. All cordless
telephony systems are subject in principle to the following explanations. The
experience gained in planning any system will therefore be very useful when it
comes to planning Ascotel DECT systems.
Interference factors
The knowledge of potential reasons for interference can raise the project engineer’s
awareness to such an extent that many critical points can be avoided already at the
design stage of the Ascotel DECT system by using the appropriate measures. In
radio technology there are many interference factors that affect mainly the range
and quality of the transmission.
In principle we need to differentiate between two types of interference factors:
• Interference by obstacles that attenuate and / or reflect radio propagation,
causing dead spots

Ascotel® DECT System
Planning DECT systems 15
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• Interference due to other radio signals, leading to transmission errors
The receive power of DECT signals can fluctuate a great deal, locally, within only a
few centimetres (see Fig. 7). This means that signal interference can be reduced or
eliminated simply by altering the position.
Fig. 7: Obstacle-induced attenuation and reflection of DECT signals
Fig. 8: Principle of multipath propagation with DECT signals
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Ascotel® DECT System
16 Planning DECT systems
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Obstacles may include:
• Moving metal objects such as lifts, cranes, carriages, escalators, blinds, especially
ones that are actuated automatically (the influence of such obstacles varies and
is therefore difficult to assess)
• Metal-panelled rooms and large metal-clad objects such as air conditioners,
computer rooms, metallized glassed areas (mirrored), fire protection walls,
storage tank installations, refrigerating units, boilers
• Building structures and installations such as steel-reinforced concrete ceilings
and walls, stairways, long corridors, rising mains, cable ducts
• Room furnishings such as metal shelves, file cabinets
Fig. 9: Attenuation of RF signals due to walls, windows, plants
Due to their typical furnishings/fixtures projects in the following environments
must be regarded as critical:
• Garages / repair workshops
•Scrapmerchants
•Campsites
• Galvanizing plants
•Metal-workingindustry
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Ascotel® DECT System
Planning DECT systems 17
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Reception conditions
Optimising range is a fundamental challenge of radio technology. The reception of
information in marginal zones is patchy at best. Practical measurements are carried
out on the premises to determine the range.
When instructing users, the following instructions can help to achieve optimum
results:
• You can usually improve the connection quality through minor changes in
location, e.g. by turning your head or your body.
• Avoid making phone calls in unsuitable places, for example in lifts. Users should
be made aware of these zones during instruction.
3.3.3 Using external antennas
The SB-8ANT radio unit with 2 external antenna connections is ideally suited for use
in difficult topographical conditions and for special coverage range requirements.
External antennas are useful
• for rectifying radio signals, thereby achieving a greater range in one particular
direction (e.g. to provide coverage to remote ancillary buildings).
• for providing coverage to an outside area without the shell of the building
obstructing the propagation of the radio signals (this is achieved by mounting
the radio unit within the building and the antennas outside it).
There are different types of antennas, each with highly specific radio characteristics
for meeting individual coverage requirements; they are best illustrated by radiation
patterns.
The first example shows an antenna that radiates evenly horizontally but has a very
restricted range vertically. This type is known as an omni-directional gain antenna
and improves the horizontal range for a constant radiation output; it is suitable for
open, level premises.

Ascotel® DECT System
18 Planning DECT systems
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Fig. 10: Example 1: Omni-directional gain antenna
The second example of an antenna, which radiates directionally both horizontally
and vertically, is called a corner reflector antenna. It is ideally suited for covering
distant remote buildings or areas.
Fig. 11: Example 2: Corner reflector antenna
The same principle applies to all antenna types: The narrower the horizontal and
vertical radiation range, the greater the distances that can be covered. In this
connection we talk of antenna gain, which indicates the ratio of the energy radiated
in a particular angle to the radiated energy of a standard antenna (usually a λ/2
dipole antenna). An extreme example of this is the radio relay antenna, which is
used for transmitting radio signals in a targeted direction from one point to the
next.
Horizontal
Radiation pattern in relative field strength
Vertical
Horizontal
Radiation pattern in relative field strength
Vertical

Ascotel® DECT System
Planning DECT systems 19
syd-0196/1.1 – I7.6 – 10.2007
Note:
When using external antennas, the cable length between radio unit and
antenna should be as short as possible because the attenuation of the
radio signals in send and receive direction is not to be neglected in this
frequency range (approx. 1.5 dB per meter for a normal cable). A 4-meter
long cable thus compensates for an antenna gain of 6 dB. It may be useful
to consider using a special low-attenuation cable.
Fading Effect
If an SB-8ANT radio unit is operated with external antennas, an antenna must always
be connected to each of the two antenna connections. The antennas should have
the same radio characteristic and also cover the same range. This reduces the
occurrence of fading effects (caused by radio signals cancelling one another out
through reflections), and considerably improves the connection quality. If such an
effect occurs on one of the antennas, the radio unit automatically switches over to
the second antenna, thereby preventing minor drop-outs. This is referred to as
antenna diversity. Fading effects occur mainly inside and between buildings, which
provide a great deal of reflection surface. Dual antennas inside a single housing,
designed specifically with this effect in mind, are widely available in the market.
That is why the radio units themselves are always equipped with two internal
antennas. For recommendations regarding manufacturers and antenna type please
contact Support ( https://pbxweb.aastra.com)
Note:
If two individual antennas are used instead of a dual antenna, the
installation clearance between the antennas must not be chosen at
random but adapted to the wavelength of the radio signals. If not, the
antennas will severely interfere with each other and mutually absorb a
great deal of energy. The recommended antenna clearance is twice the
wavelength = 32 cm or a multiple of the wavelength = 48, 64, 80 or 96 cm.
Clearances of 16 cm or in excess of 1 m are not recommended as this can
cause other types of interference.

Ascotel® DECT System
20 Planning DECT systems
syd-0196/1.1 – I7.6 – 10.2007
3.3.4 Using repeaters (relays)
Repeaters are autonomous devices which increase the range of the DECT system.
When positioning a repeater you need to make sure not only that the coverage
ranges overlap but also that the repeater is mounted in the coverage range of one
radio unit and vice versa. Several repeaters can be allocated to one radio unit. Ring-
form (see Fig. 12) as well as other arrangements around a radio unit are possible.
Most repeaters operate in "Blind Slot mode" but are also compatible with the Zero-
Blind-Slot mode. As they receive and send, only 2 call connections are usually
possible simultaneously on each repeater.
A radio unit supports a maximum of 8 simultaneous call connections via repeater (or
only 4 with SB-4 / SB-4+). Cascaded repeaters are not supported. However the
handover between individual coverage ranges is guaranteed.
Fig. 12: Arrangement of repeaters around a radio unit
Even remote buildings can be covered with a repeater by using external antennas
with rectification.
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