Wildix W-AIR Installation and maintenance instructions

W-AIR Network Admin Guide - Sync over the air
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Mar 29, 2020 04:21
W-AIR Network Admin Guide - Sync over the air
Description
System architecture
Multicell network scalability and features
Planning a multicell network
Before you start
Handover and Roaming
Handover
Roaming
Deployment considerations
Capacity planning
Site Survey
Requirements
How to check RSSI level
Placing the first base station
Check the Radio Coverage
Handset
Base station
Repeaters
Base station/ Repeater Placement Strategy
Radiation pattern - base optimal position for optimal coverage
Base station and repeaters connection and overview
Packing lists
Base stations mounting, connection and reset
LEDs of the Base Stations
Mounting instructions
Find Base station IP
Repeaters connection and overview
Repeater connection and reset
LEDs of the Repeaters
W-AIR Network configuration
Step 1. Provision base stations
Step 2. Create a W-AIR Network
This guide leads you through installation of W-AIR Base and W-AIR Base Outdoor and setting up a W-
AIR DECT Network in which the bases sync over the air.
Updated: June 2016
Permalink: https://confluence.wildix.com/x/IADfAg
W-AIR Base is End Of Life.

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Step 3. Register a W-AIR Handset
Step 4. Set up Repeaters
W-AIR Network deployment
Case 1: Sync chain with one Primary Base
Case 2: Sync chain without alternative sync paths
Case 3. Sync chain with alternative sync paths.
Verify deployment
W-AIR Network auto roaming feature
Call Features
DND, Call forwarding, Paging, Call intrusion, Intercom
Ring tones
Call transfer, hold, call swap, conference call
Upgrade Procedure of W-AIR system
FW upgrade of Base Stations
FW upgrade of Repeaters and Handsets
Repeaters
Handsets
Alarms setting
Types of alarms
Alarm Button
Pull Cord Alarm
Running Alarm
Man Down Alarm
No Movement Alarm
Set up emergency profiles
Assign emergency profile to handsets
Description
System architecture
W-AIR is a Wildix cordless solution. The system supports auto-provisioning enabling instant connection to the
Wildix PBX. Due to high scalability, new components are quickly and easily integrated to guarantee the better
performance.
Wildix W-AIR system uses the wireless technology CAT-iq (Cordless Advanced Technology – Internet quality).
The architecture consists of three components:
1. - an essential component of a DECT system. Wildix W-AIR base stations:Base station
Multicell base stations: W-AIR Base (End Of Life), W-AIR Base Outdoor, W-AIR Base Sync Plus (for sync
over LAN, refer to )W-AIR Network Admin Guide - Sync over LAN
Single Cell base station: W-AIR Base Small Business. Documentation: W-AIR Small Business Admin
Guide
2. - extends the signal coverage of the base station.Repeater
3. :Cordless endpoints

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Wildix W-AIR handsets: W-AIR Basic (ex W-AIR 70), W-AIR 100 (End Of Life), W-AIR LifeSaver (ex W-AIR 150),
W-AIR Med, W-AIR Office and W-AIR Headset. Follow the online Guides to get detailed information: W-AIR
DECT Handsets Guide, W-AIR Headset Guide.
Multicell network scalability and features
Sync over the air with W-AIR Base, W-AIR Base Outdoor or mixed network in which W-AIR Bases Sync Plus are
present:
Up to 1000 users per system
Up to 250 bases
Up to 30 handsets registered to one base station*
Up to 3 Repeaters per base
Up to 50 bases - 3 repeaters
50-125 bases - 1 repeater
More than 125 bases - no repeater
Up to 100 Repeaters registered to one system
Up to 8 concurrent calls** per base
8 narrow band audio channels per base
4 CAT-iq wideband audio channels per base
(Single cell setup) Max 10 concurrent calls per base
Handover through the base station (max. 8 simultaneous handovers)
Up to 5 concurrent calls per repeater
Up to 24 sync levels
Base station indoor range: 50 m; outdoor range: 300m
Planning a multicell network
Before you start
*Note: by default W-AIR system supports up to 20 devices, to increase the number to 30 devices, use
Custom Provisioning parameter, described in this document: https://confluence.wildix.com/x/KQg8AQ
** Enabling PTT feature (Push-to-talk) on W-AIR handsets reduces the number of available channels on
each base station to 6.
Important:
Base stations can sync over the air only in case they are able to see each other.
They see each other if the dBm value is between -75 and 0.
Repeater which is placed between the two Base stations can only extend the coverage but cannot
perform the sync.

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Intelligent Networking Configuration:
Connecting 3 Repeaters in a chain:
Base Station and Repeater positioning:
For a good conversation and a correct handover between Bases and Repeaters the dBm value must be
between -75 and 0.

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Handover and Roaming
Handover
is a process in which a call is transmitted from one base station to another without interrupting theHandover
session.
When the call is set up, the handset is located at Base 1. Thus, the DECT communication takes place between
the handset and Base 1, and the SIP signaling as well as the RTP stream takes place between Base 1 and the
PBX:
After handover, the handset is located at Base 2, and hence the DECT communication goes on between the
handset and Base 2. However, to avoid disruption of the audio, the RTP stream is relayed via the initial base
station, since a transfer of the RTP stream to another base may cause the PBX to re-initialize the RTP stream
with a small disruption of the RTP stream as consequence. Thus, RTP stream is not affected by the handover,
and since the call control also remains at Base 1, SIP signaling is also unaffected, as shown below:

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1.
2.
Since the call control and hence the SIP User Agent remains at the initial base station, the SIP registration is also
unaffected by the handover. If the handset makes yet another handover, the RTP stream will still be relayed via
the base station at which the call was established (Base 1 in our case):
Roaming
By it is meant that the handset moves its SIP and DECT registration from one base station to anotherroaming
base station. Roaming can only be initiated from idle.
Roaming does not immediately result in a new SIP registration, to avoid unnecessary signaling. Therefore, the
handset will not perform a new DECT Location Registration until it has resided on the same base station for a
defined period of time*. Since the SIP registration is initiated by the completion of the Location Registration, a
new SIP registration will also not be done until this procedure has completed on a new base station. Thus, a
handset must stay on the same base station before a new SIP registration is made.
*How the period of time after which Location Registration is performed, is defined:
Handsets lose contact to the initial base station due to reset/ power off/ heavy DECT traffic.
After 5 minutes but before 5+2 minutes (+2 minutes occur when service connection traffic is signalled at
the same time as location registration should take place; in this case the location registration procedure
will be delayed)
If an incoming call arrives while the handset has moved to another base station (Base 2 in our example) but the
new Location Registration was not yet performed, the SIP call will arrive at the initial base station (Base 1 in our
example), the RTP stream will be set up between Base 2 and the PBX. Alternatively, in the case of an outgoing
call, the SIP call will be established from the initial base station, and the RTP stream will be set up between Base
2 and the PBX:

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Deployment considerations
The following radio related issues should be considered before deploying a W-AIR DECT Network:
Building Penetration: when a signal strikes on a building it is diffracted or absorbed; therefore the signal
can be reduced. The amount of absorption depends on the building and its environment, the amount of
solid structure.
Interference Sources: other signals can create interferences and weaken the signals of the receiving
antennas. These interferences can come from the same network or from the outside. For choosing the
optimal position of the Base station and Repeaters, these potential interference sources should be
considered before installing a Wildix W-AIR system.
Radio/ Cell Range: a suggested distance between two base stations depends on the physical path
between them. If the path loss is lessened, e.g. by minimizing the amount of walls/ obstacles on the path,
then the signals of the base stations cover more distance. In a typical office building a suggested distance
between two base stations is 30-40 m.
Capacity planning
The maximum quantity of calls is indicated in the list below:
Base stations: up to 8 simultaneous calls
Repeaters: up to 5 simultaneous calls
Do not place base stations close to GSM Media gateways (DaySaver or W01GSM)

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1.
2.
3.
4.
Notes:
The total coverage capacity of a base station and one or more Repeaters is always limited to the
capacities of a base station.
A W-AIR network uses an auto-balancing model to increase the number of simultaneous calls, distributing
the calls to 2 or more adjacent Base stations
Simulate the worst environmental conditions (close the doors, turn on the equipment, etc) to perform a
realistic test of configuration
Call 98 code (conference) on your W-AIR Handset to listen to the music on hold, to test an audio reception
quality.
If you enable PTT (push to talk) feature on W-AIR Handset, the number of available channels on each
base station is reduced to 6.
Call 76 code (echo) on your W-AIR Handset to test the voice quality
Site Survey
Requirements
PoE switches or a 48V PoE power injector. Site survey is possible without network connectivity.
A DHCP server. If you are using Wildix PBX as DHCP Server, go to andSettings System DHCP Server
search for the device among the DHCP leases.
A W-AIR base. Reset the base station to the default settings.
A W-AIR handset. Before getting started make sure the handset is fully charged. The handset does not
need to be pre-registered to a particular base. Connect the base station to the power injector and turn it on.
How to check RSSI level
Follow the steps below:
Press "Menu" key of the W-AIR handset
Type *ip* (*47*)
Use the cursor down/ up to select the base MAC address
Select the base station to view its RSSI level.
Placing the first base station
Follow the steps below:
place the W-AIR base station exactly at the desired position and power on the base.
Check RSSI level on the handset.
use the building plan drawing and check the base station coverage using the Site survey mode of the
phone. Mark up acceptable and unacceptable spots on the plan drawing. Take notes of the RSSI levels of
the base. Acceptable spots are the ones where the phone shows .RSSI levels better than -75 dBm
Follow the steps again to place more base stations.
Typically, when the system is installed in the office buildings, hotels or hospitals, there should be both Base
stations and Repeaters on several floors to create uniform and complete radio coverage. Open areas can be
covered by wide network of Base stations. In these applications, the Base stations and/ or Repeaters cover an
extended range due to the extended line-of-sight radio propagation capability.
Check the Radio Coverage

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Handset
Press "Menu" key of the W-AIR handset (the phone must be registered to the base station)
Type *service* (*7378423*).
Select the line Site survey mode
The phone will show up to 5 bases (RPN) and the coverage value.
Check PP and FP values, they indicate the transmission errors. Empty value or a low number indicates a
correct behavior (value 100 = the worst behavior)
Base station
Go to the web interface of a base station and click on to see the status and the coverage values ofMulti Cell
every connected base, check the column DECT sync source to know the value.
Repeaters
Go to the web interface of a base station and click on Repeaters to see the status and the coverage values of
every connected Repeater, check the column DECT sync source to know the value.
Base station/ Repeater Placement Strategy
The antennas of the base stations are close to omnidirectional, thus it is not important how the base stations are
directed and how they face each other. There is no single strategy for deploying base stations, but there are
some recommendations:
In the Corridors: base stations/Repeater should be deployed vertically, preferably in the corridor
intersections so that the propagation follows the corridor patterns/curves. If there are high objects in the
area, the base station/Repeater should be installed above them.
Multi-storey Buildings: base stations and Repeaters can be installed on the opposite sides of the floors
to cover the area floor-to-floor. The coverage design cannot rely entirely on floor-to-floor propagation; each
case should be verified due to variations in local attenuation patterns
Large Halls: base stations and Repeaters can be deployed in large halls that contain a central open
space area with windows leading to other areas. This provides a good coverage for the rooms in the inner
circle on all floors (e.g. hotels). In large halls, Base stations/Repeaters should be installed vertically in the
middle of the space below the drop ceiling.
Mounting Positions: when Base stations and Repeaters are mounted vertically on a wall, the radio
coverage in front of these devices is twice as large as the coverage behind them. The base stations
should always be mounted higher than the obstructive objects in the area – e.g. minimally 2m above the
floor. Repeaters should be installed in the middle of the corridors and small rooms.
For a good conversation and a correct handover between bases and Repeaters the dBm value should be
between -75 and 0.

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Metallic Structures/Objects: base stations and Repeaters should not be deployed near large metallic
objects
Reinforced Concrete Structures: these structures create a high attenuation factor inside the building.
They reduce the radio coverage range of the Base stations and Repeaters thus a higher number of base
stations or Repeaters are required in the building. Lighter types of construction materials require fewer
base stations since attenuation figures are considerably lower.
Radiation pattern - base optimal position for optimal coverage
Here is radiation pattern, measured when the unit is in an upright position. Antenna 0 is the right antenna seen
from the back of the base station. If you print the pattern out on a paper and place a base station in the center
you can see the radiation pattern:
Antenna 0:
Antenna 1:
From the radiation pattern it can be seen that the optimal position of the base for optimal coverage is upright
position. When base is deployed this position must be considered as it is optimal for cell coverage between base
chains and handset usage.