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Revisions of this document or new editions of it may be issued to incorporate such changes.
No part of this document can be reproduced or transmitted in any form or by any means - electronic or mechanical
- for any purpose without written permission from Mitel Networks Corporation.
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The trademarks, service marks, logos and graphics (collectively "Trademarks") appearing on Mitel's Internet sites
or in its publications are registered and unregistered trademarks of Mitel Networks Corporation (MNC) or its
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Mitel’s Power Over Ethernet (PoE) Powered Device (PD) products are covered by one or more of the U.S. patents
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For more information on the PD patents that are licensed, please refer to www.cmspatents.com.
5OMM Web Service...........................................................................................................................................59
12.3 RFP Configuration File / Central (OMM Database)353
12.3.2 RFP Configuration File / Local (OM Configurator)356
12.4 RFP Export File Format360
12.5 CoA Configuration Parameters362
12.5.1 Configuration of Variable Lists362
12.5.2 Extended COA Examples363
12.5.3 Example 1363
12.5.4 Example 2363
12.5.5 Example 3367
12.5.6 Example 4367
12.5.7 Example 5369
12.5.8 Supported COA Parameters370
12.6 Protocols and Ports398
12.7 Abbreviations400
12.8 Definitions401
12.9 References403
ix
SIP-DECT OM System Manual
1OVERVIEW
This document describes the installation / configuration, administration, and maintenance of the SIPDECT solutions. Please also see the documents listed in the References section (section 12.9) for
additional details on different aspects of the SIP-DECT system.
For a list of abbreviations and definitions, see the appropriate sections in the Safety Information.
1.1THE SIP-DECT SOLUTION
The SIP-DECT solution includes the following main components:
SIP-DECT base stations that are distributed over an IP network and offer DECT,
WLAN, and IP interfaces
DECT phones (portable DECT devices)
OpenMobility Manager (OMM): Management and signaling software for the SIP-
DECT solution, which runs on one of the DECT base stations or on a dedicated
Linux server (for large installations). In addition, a standby OMM can be configured
to ensure OMM function in case of failure or loss of network connection.
A SIP Call Manager/IP PBX/Media Server platform (e.g. Asterisk)
001-omm-arch.psd/.
The IP PBX/media server/media gateway, OMM and the RFPs communicate through the IP
infrastructure. The RFPs and the DECT phones communicate over the air, where the DECT GAP
protocol or DECT GAP with proprietary enhancements is used.
The SIP-DECT solution supports seamless handover between RFPs which are in a group of
synchronized RFPs (cluster) and roaming between RFPs on remote sites.
Additional components include:
LDAP server to facilitate a central corporate directory
Provisioning server to provide RFP configuration or user data files
Data backup server to automatically backup an OMM database from the server
OM Locating server and clients to run the SIP-DECT locating solution
3rd party messaging or alarm server to integrate the SIP-DECT text messaging into
a unified messaging or alarm environment
Computer for administration and maintenance tools: Web browser, OM
Management Portal (OMP), DECT Monitor
10
Figure 1 Architectural Overview of the SIP-DECT Infrastructure and Features
1.2ABOUT DECT BASE STATIONS
Overview
DECT base stations are also referred to as Radio Fixed Parts (RFPs) in this document.
1.2.1 DECT BASE STATION FAMILIES
1.2.1.1RFP 4G DECT Base Station family
As of SIP-DECT 8.0, SIP-DECT supports the 4thbase station generation (RFP 4G). This 4thRFP
generation comprises of:
RFP 44
DECT RFP as indoor model with 4 narrow band voice channels and internal
antennas.
RFP 45
DECT RFP as indoor model with 8 narrow band voice channels and internal
antennas.
RFP 47 (Indoor Unit)
DECT RFP as indoor model with 8 narrow band voice channels and 2 SMA
connectors for external directional antennas.
RFP 47 DRC (Outdoor Unit)
RFP 47 pre-installed with directional antennas and 3m cable in an outdoor
enclosure.
RFP 48
DECT RFP with 8 narrow band voice channels + WLAN Access Point as indoor
model with internal antennas for DECT and WLAN.
The hardware of all the RFPs complies with the different regulatory domains. There are no specific
hardware variants required to use specific frequency bands and field strengths. Transmit Power,
frequency band and carrier frequencies are controlled by software.
Differences compared to the previous 3rdRFP family (RFP 35, 36, 37 IP and RFP 43 WLAN) are:
RFP 48 supports 5GHz WLAN according to 802.11ac and 3x3 MIMO
Configuration button
- switch to SIP-DECT with Cloud-ID mode
- reset RFP to factory defaults
Separate outdoor enclosure available for outdoor usage
No external power supply (PoE only)
No USB interface
RFP 44/45/ support 100MBit/s Ethernet only, The RFP 48 supports 1 GBit/s
Boots from internal flash memory instead of net-boot (SIP-DECT software is already
on board)
Software update via TFTP, FTP(S), HTTP(S), SFTP supported
Hardware can support Secure SIP and SRTP (with SIP-DECT 5.0 or later)
Supports CAT-iq 1.0 level high definition voice for the Mitel 650 DECT phone
There are no differences regarding the SW update process compared with the 3rd RFP generation,
except a SW update through USB is not possible; because, the RFP 4G does not come with a USB
interface.
The RFP 47 RF output is provided through 50 ohm SMA–type connectors. These are electrically
compliant with old external antennas, although might not fit mechanically to some antenna cabling.
It is the responsibility of installers to propose connecting solutions according to the installations. For that,
a 50 ohm / 3Ghz coaxial adapter is required, which will link the RF output connectors of RFP47 to the
existing DECT antenna infrastructure.
1.2.1.2 RFP 3G DECT Base Station Types
Mitel offers four types of RFP 3G DECT base stations for the SIP-DECT solution:
RFP 35 IP
DECT RFP as indoor model
RFP 36 IP
DECT RFP as outdoor model with built-in dipole antennas
RFP 37 IP
DECT RFP as outdoor model with connectors for external directional antennas
RFP 37 DRC (Set)
DECT RFP, preinstalled with directional antennas and 3m cable in an outdoor
enclosure
RFP 43 WLAN
DECT RFP + WLAN Access Point as indoor model with internal antennas for DECT
and WLAN
As of SIP-DECT 6.0, there is no distinction between DECT base station soft brands (that is, L-RFPs and
non-L-RFPs). See section 3.3.2 for more information.
13
SIP-DECT OM System Manual
In general the RFP 35 / 36 / 37 IP have the same hardware platform and software capabilities. RFP 43
supports WLAN in addition to DECT.
1 Power 48V DC (optional)
2 1GBit/s Ethernet (PoE)
3 USB
4 DECT antenna connector (RFP 37 IP)
5 Antennas (RFP 37 IP)
The hardware of all the new RFPs complies with the different regulatory domains. There are no specific
hardware variants required to use specific frequency bands and field strengths. Transmit Power,
frequency band and carrier frequencies are controlled by software.
Other differences compared to the previous RFP family (RFP 32/34 IP and RFP 42 WLAN):
Boots from internal flash memory instead of net-boot (SIP-DECT software is already
on board)
Supports software update through TFTP, FTP(S), HTTP(S), SFTP
Supports 1GBit/s Ethernet
Supports CAT-iq 1.0 level high definition voice for the Mitel 650 DECT phone
Hardware can support Secure SIP and SRTP (with SIP-DECT 5.0 or later)
Uses an external 48V DC Power Supply (if no PoE available) which meets the latest
environmental requirements (RFP 37: PoE only)
RFP 43 WLAN supports the 802.11a/b/g/n standards
Indoor RFPs have a USB 2.0 interface to connect external hardware for future
applications (for example, Video Camera)
1.2.1.3Older RFP Types
Older RFP models supported by the SIP-DECT solution include:
RFP 32 IP
DECT RFP as indoor model
RFP 34 IP
DECT RFP as outdoor model
14
Overview
RFP 42 WLAN
DECT RFP + WLAN Access Point as indoor model
The RFP 32 and RFP 34 have the same hardware and software capabilities. Please note the regulatory
differences between North America and other areas of the world. These differences lead to different RFP
32/34 variants which use specific frequency bands and field strengths:
RFP 32 NA or RFP 34 NA (NA)
–Frequency Band 1920 to 1930 MHz
–5 carrier frequencies
–Transmit Power 20 dBm
RFP 32 IP or RFP 34 IP (EMEA)
–Frequency Band 1880 to 1900 MHz
–10 carrier frequencies
–Transmit Power 24 dBm
The RFP 42 WLAN is only available for the EMEA region.
RFP 32 IP / RFP 32 NA
RFP 34 IP / RFP 34 NA
1 Power jack (120 V/230 V AC adapter)
2 Ethernet jack; Power supply in line with Power over Ethernet standard IEEE 802.3af
RFP 42 WLAN
As of SIP-DECT 6.0, there is no distinction between RFP soft brands (i.e., L-RFPs and non-L-RFPs).
With SIP-DECT 5.0 and older releases, the “L” variants have built-in licenses. See section 3.3.2
(Licensing) for more information.
Note:The software package for previous RFPs has a tftp extension
e.g. “iprfp2G.tftp. With SIP-DECT 3.0 or higher, you need a 3G
RFP to run the Open Mobility Manager.
15
SIP-DECT OM System Manual
1.2.2 OPENMOBILITY MANAGER (OMM) MODE
If the OMM is not running on a dedicated Linux server, one RFP within a SIP-DECT installation must be
declared to operate as the OpenMobility Manager (OMM). The RFP acting as the OMM may also act as
a regular RFP if it is part of a DECT cluster.
In OMM mode, an RFP functions as a regular RFP. Additionally, it is responsible for SIP signaling
between the SIP-DECT system and the IP PBX/SIP server. Further on, it takes over the management
part of the SIP-DECT solution. You designate an RFP as the OMM by assigning an IP address to the
RFP within the DHCP scope (see section 8.5) or by setting the data via the OM Configurator (see
section 8.7). After an RFP is designated as the OMM, it starts the extra services on board (for example,
the web service that supports the management interface). All RFPs download the same firmware (for
their RFP type), but only one RFP (or two, in standby implementations) activates the OMM services.
Note:It is possible to deactivate the DECT part of an RFP. If the DECT
interface is deactivated, all resources (CPU and memory) are
available for the OMM.
This might be necessary, for example, in configurations where a
mix of OpenMobility Manager, G.729/Conferencing and WLAN is
provided by the same RFP.
1.3ABOUT THE OPENMOBILITY MANAGER
The OpenMobility Manager (OMM) requires an RFP 35/36/37 IP resp. RFP 43 WLAN, or a dedicated
Linux server.
There is only one OpenMobility Manager (OMM) active in the system at a given time.
If the OMM runs on a DECT base station, a 100 Mbit/s network link is required.
If the OMM runs on a dedicated Linux server, a 1 GBit/s network link is required
(see also section 8.13.1).
In addition, a standby OMM can be configured to ensure the OMM function in case of failure or loss of
network connection. For more information on the standby OMM see section 8.15.
1.3.1 OMM TASKS
The OMM performs the following tasks:
Signaling gateway (SIP <-> DECT)
Media stream management
Managing sync-over-air functions between RFPs
Provides a Web service for system configuration
Provides additional services such as
–LDAP based central corporate directory
–OM Application XML interface (OM AXI) for OAM&P,
messaging, alerting service and locating
–Integrated Messaging and Alerting Service (OM IMA)
–Data backup and provisioning services
16
–SIP-DECT XML terminal interface. This interface adapts the “XML API
for SIP Phones“ to SIP–DECT phones. The Mitel 600 DECT phone family is
supported.
Overview
Additional information on the following functionality is available in separate documents.
Locating: See the SIP-DECT OM Locating Application Administration Guide.
Integrated Messaging and Alerting Service: See the SIP-DECT OM Integrated
Messaging and Alerting Application Guide and the SIP-DECT Mitel 600 Messaging
and Alerting Applications Guide.
User data provisioning: See the SIP-DECT OM Handset Sharing and Provisioning
Guide.
Administration and monitoring by third party applications: See the OM Application
XML Interface Specification.
SIP-DECT XML terminal interface: See the SIP-DECT XML Terminal Interface
Specification.
1.3.2 SIP-DECT SPECIAL FEATURES AND CAPABILITIES
FeatureGAP142d600
Large DECT Systems (XXL)No connection handover
beyond 256 RFPs
Messaging & Alertingnonoyes
Initiate Alarm Trigger*, # feature access code
procedure,
no sensor alarm
yesyes
*, # feature access
code procedure,
no sensor alarm
yes
Locatingyesyesyes
DECT XQnonoyes
17
SIP-DECT OM System Manual
FeatureGAP142d600
UTF-8 and alphanumeric dialing
nonoyes
support
SIP-DECT XML terminal APInonoyes
CAT-iq 1.0 / Hi-Q™ audio
nonoyes (650 only)
technology
1.3.3 OMM CAPACITIES AND FEATURES
The following table summarizes OMM capabilities:
Feature Release 3.0 or laterRelease 6.0 or later
RFP OMMLinux server
OMM
RFP 32/34/35/36/37/44/45/47 IP and
256
1
2048
1
RFP 42/43/48 WLAN
Handsets / users 5124500512/1024
Message / Alarm receiveyes / yes
1
yes / yes
Message sendyesyesyesyes
Locatingyes
1
yes
1
DECT XQyesyesyesyes
RFP OMMLinux server
1
256
3
1
yes / yes
yes
1
1
OMM
4096
10000
yes / yes
yes
1
1
1
UTF-8 and alphanumeric dialing supportyesyesyesyes
SIP-DECT XML terminal APIyesyesyesyes
CAT-iq 1.0 / Hi-Q™ audio technologyyes
1
The feature requires a license.
2
The feature is available with the RFP 35/36/37/44/45/47 IP and RFP 43/48 WLAN and the Mitel 650
2
yes
2
yes
2
yes
2
DECT phone (or other CAT-iq-capable devices). The feature is enabled per site and requires that the
RFPs are configured in the same site and cluster.
3
Release 8.0 or later: If RFP 4G runs as OMM, 1024 users/handsets are supported.
1.3.4 OMM CAPACITIES AND RFP SUPPORT
The following table summarizes OMM and RFP support capabilities:
Feature As of SIP-DECT 6.0As of SIP-DECT 8.0
RFP 32/34 IP and
RFP 42 WLAN
RFP 35/36/37 IP and
RFP 43 WLAN
RFP OMMLinux server
OMM
25640962564096
25640962564096
RFP OMMLinux server
OMM
RFP 44/45/47 IP and
RFP 48 WLAN
18
Not
applicable
Not
applicable
2564096
Feature As of SIP-DECT 6.0As of SIP-DECT 8.0
Overview
RFP OMMLinux server
OMM
DECT phones / users 512100001024 (RFP 4G
RFP OMMLinux server
OMM
10000
OMM)
512 (RFP 3G
OMM)
1.4ABOUT DECT PHONES
DECT Phones (formerly referred to as Portable Parts) are an integral part of the SIP-DECT solution.
Mitel provides the following DECT phones:
The Mitel 600 DECT phones support both the NA and EMEA regulatory requirements.
The latest Mitel 600 firmware release has the following characteristics:
New user interface e.g. new dial editor with alphanumerical and always en-bloc
dialing
Support of UTF-8 in over the air signaling with the OMM
Digit and alphanumeric dialing
Support of SIP-DECT XML terminal interface
Support of microSD card to save subscription data and the most important local
device data (not supported by Mitel 600 DECT phones)
Additional subscription options
Additional alarm melodies
Profile indication in idle display
For more details please see /31/and /32/.
In addition to the existing Mitel 600 DECT phone set, the new Mitel 650 DECT phone supports CAT-iq
1.0 and thus supports G.722 (wideband) voice connections. For the full experience of wideband audio,
the DECT phone hardware (e.g., speakers, microphone, and processor) has been improved.
The Mitel 600 DECT phone also supports DECT enhanced security.
1.5FILE NAMING CONVENTIONS
The following table lists the file names for SIP-DECT software deliverables.
19
SIP-DECT OM System Manual
Software packageAs of SIP-DECT 7.1As of SIP-DECT 8.0
Software image for RFP 32/34 IP / RFP 42 WLANomm_ffsip.tftpiprfp2G.tftp
Software image for RFP 35/36/37 IP / RFP 43 WLANiprfp3G.dnldiprfp3G.dnld
Software image for RFP 44/45/47 IP / RFP 48 WLANNot applicableIprfp4G.dnld
OMM software for Linux Red Hat server (selfextracting executable)
The following table summarizes the default login and passwords for SIP-DECT system components.
Interface/ToolSIP-DECT OMM
SDC OMM
Initial configuration
through OM Configurator
login / password
(no previous connection
with the OMM)
Initial OMM configuration
through Web or OMP
standard full-access
account
login / password
n/aNo login required“omm” / “omm”
“omm” / “omm”
“omm” / “omm”
RFP 32/34 IP /
RFP 42 WLAN
n/an/a
RFP 35/36/37 IP / RFP 43 WLAN
RFP 44/45/47 IP / RFP 48 WLAN
OMM access through
Web or OMP
(after initial OMM
configuration)
Configuration through OM
Configurator after
connection with OMM
login / password
(system-wide set by
OMM)
ssh
(no previous connection
with the OMM)
ssh
(with previous connection
with the OMM)
(system-wide set by
OMM)
20
Read-only or fullaccess accounts as
configured
n/aOMM standard full-
n/aUser shell:
n/aUser shell:
n/an/a
access account
login / password
“omm” / “omm”
Root shell:
“root” / “22222”
OMM standard fullaccess account
login / password
Root shell:
as configured
OMM standard full-access account
login / password
User shell:
“omm” / “omm”
Root shell:
“root” / “22222”
User shell:
OMM standard full-access account
login / password
Root shell:
as configured
Enhanced Feature Overview
2ENHANCED FEATURE OVERVIEW
A SIP-DECT system can scale from a small system of five or less DECT base stations to a larger SIPDECT system that may include hundreds of DECT base stations. Some of the more advanced features
target larger DECT systems. You may browse the following list of features in order to get an overview
and to decide if it’s relevant for your requirements. You find in-depth explanations in the referenced
sections.
Please note: Be aware that the majority of the new enhanced features require the current
DECT phone firmware release. It is assumed that SIP-DECT installations are configured
to perform an automatic firmware update over the air.
2.1PC-BASED OMM INSTALLATION
A very large number of DECT base stations or a large number of DECT phones may exceed the storage
capacity or processing power of the embedded DECT base station. For this reason, it is also possible to
operate the OMM on a standard PC under the Linux operating system (see section 8.13).
As of SIP-DECT 5.0, CentOS 6 and virtualized environments (VMware vSphere ESXI 5 and 6) are also
supported. SIP-DECT 6.1 is tested with CentOS 6.x.
As of SIP-DECT 7.1, CentOS 7 is required. An OVA-File is distributed together with the software for
usage within virtualized environments (VMware vSphere 6.5). The verification is executed with VMware
vSphere 6.0 and 6.5. For further information, see document /47/ SIP-DECT_LinuxServerInstallation.
2.2DECT XQ
The DECT radio communication generally suffers from attenuation and radio wave reflection. In
particular, if a building’s walls and ceilings contain a higher portion of metal-based material or if larger
metal surfaces are present, the DECT XQ improves the radio communication between a DECT base
station and a Mitel 600 DECT phone at the expense of DECT channel capacity (see 8.3). Enable this
feature for some or all of your DECT base stations (see section 5.6.3, “DECT settings” or section 6.7.1.2,
“DECT tab”).
DECT XQ audio cannot be combined with Hi-Q audio within the same connection.
There are three operating modes related to audio quality available on the Mitel 650 DECT phone:
standard audio, Hi-Q audio and automatic.
In Hi-Q audio mode, a Mitel 650 DECT phone exclusively establishes wideband
connections and does not switch to narrowband later. A Mitel 650 in this mode
ignores the XQ capability of the RFP.
In standard audio mode, a Mitel 650 DECT phone exclusively establishes
narrowband connections and does not switch to wideband later. A Mitel 650 in this
mode will switch to DECT XQ and back as necessary.
In automatic mode, the connection establishment depends on whether the current
base provides DECT XQ or not. If DECT XQ is available, a narrowband connection
will be established. Otherwise, a wideband connection will be established.
In conjunction with the RFP 35/36/37/44/45/47 IP and RFP 43/48 WLAN, the Mitel 650 DECT phone can
act as a Mitel Hi-Q audio terminal. This feature is realized using wideband speech according to CAT-iq.
Each Hi-Q connection uses twice the capacity on the DECT air interface, as compared to conventional
narrowband. Therefore, four Hi-Q connections can be established via one RFP, instead of eight
narrowband calls.
Mitel Hi-Q audio technology must be enabled or disabled per site (see section 5.5). This functionality
must be homogeneously available among synchronous RFPs (members of the same cluster). Each site
with enabled Hi-Q audio must exclusively contain new RFP 35/36/37/44/45/47 IP or RFP 43/48 WLAN.
Typically one site is identical with one cluster, i.e. all RFPs belonging to a specific site belong to a
specific cluster. However a site can have more than one cluster. The OMM allows configuration of a
cluster that contains multiple sites. Such configuration could annul the rule that Hi-Q audio must be
homogeneously available among synchronous RFPs.
Please note: It is strongly recommended not to setup systems with multiple sites within one
cluster.
2.4DECT ENHANCED SECURITY
In response to market concerns, the DECT standard has introduced improvements to security. Many
security features, which were specified in the DECT standard (respectively GAP) were left optional for
the DECT phones. These mechanisms became mandatory with CAT-iq. Almost all of this functionality
was present and used within SIP-DECT right from the start.
Furthermore, some new features have been added to GAP:
Encryption of all calls (not only voice calls)
Re-keying during a call
Early encryption
Each feature provides an additional security guarantee and is therefore an integral part of the SIP-DECT
solution.
The feature set can be enabled or disabled per site, because enhanced security is available with 3rdor
4thgeneration RFPs. Roaming between sites where enhanced security is enabled and disabled
respectively should be avoided.
With SIP-DECT 5.0 and later, when DECT enhanced security is enabled, every connection is encrypted
– not only voice calls, but also service calls (e.g. list access) or messaging.
Additionally, the cipher key used for encryption during an ongoing call is changed every 60 seconds.
Finally, every connection is encrypted immediately upon establishment to protect the early stages of the
signaling such as dialing or CLIP information.
DECT enhanced security is only supported with Mitel 602 DECT phones. Older terminals (e.g. 6x0d or
142d) or GAP phones still operate as normal, but do not support the new security mechanisms.
22
Enhanced Feature Overview
2.5VOIP ENCRYPTION
To allow secured call connections over unsecured IP infrastructures (e.g. internet), SIP-DECT supports
SRTP to encrypt the RTP voice streams and TLS to encrypt the SIP signaling.
These security mechanisms, together with a secured iPBX infrastructure, allow protected call services
and ensure:
Authentication
Integrity
Confidentiality
Privacy
When a Mitel 600 DECT phone user is involved in a SRTP call, a key icon in the call display indicates
that the media path to the next hop is ciphered.
The key icon is only displayed when the connection uses SIP over TLS, SRTP (for 3G RFPs only) and
DECT encryption together for a secure key exchange and a secure media transport.
2.6MIXED DECT BASE STATION INSTALLATIONS
In sites (or whole systems) with Hi-Q audio disabled, any combination of RFP 32/34 IP / RFP 42 WLAN
and RFP 35/36/37 IP / RFP 43/48 WLAN is allowed. Note, however, that some security features are not
supported for all DECT base stations (that is, SRTP and enhanced security are supported on 3
generation RFPs only).
RFP SL35 IP support
SIP-DECT supports the RFP SL35 IP after applying the unlock file and the standard SIP-DECT software
to the DECT base station.
Before the standard SIP-DECT software can be installed on the RFP SL35 IP, the unlock.xml file must
be available for the DECT base station on the USB. After applying the unlock.xml file the DECT base
station accepts the standard SIP-DECT software.
In terms of licensing, the OMM manages the RFP SL35 IP with the unlock file and the standard SIPDECT software like an RFP 35 IP.
For a detailed description see section 8.30.
rd
and 4
th
2.7WIRELESS LAN (WLAN)
If you have a number of WLAN DECT base stations (RFP 42/43/48 WLAN), the SIP-DECT system also
provides access to your company LAN through Wireless LAN. The RFP 43/48 WLAN support 802.11n.
The RFP 48 WLAN also supports 802.11ac. The WLAN configuration of a group of WLAN RFPs is
managed by WLAN profiles (see section 5.8).
2.7.1 802.11I: WPA2-ENTERPRISE PRE-AUTHENTICATION FOR FAST ROAMING
WLAN stations (e.g. laptop) which decide to roam to another WLAN access point (AP) must perform the
full authentication process with the new AP. In 802.1x (RADIUS) networks this can take a long time
resulting in network dropouts during the roam.
23
SIP-DECT OM System Manual
The AP share authentication information with other APs, so the station can authenticate faster (pre-auth)
when roaming to a new AP. This method reduces network dropouts significantly.
The RFP 43 and RFP 48 automatically enables pre-authentication for WPA-Enterprise enabled WLANs.
The RFP 42 does not support this feature.
2.7.2 CHANNEL CONFIGURATION FEEDBACK FOR HT40 AND TX POWER
The HT40 channel configuration in 802.11n enabled networks may not always become active because of
other access points that use channels that would overlap. In this case, the RFP 43 and RFP 48 fall back
to HT20.
From SIP-DECT 5.0 on, the effective channel configuration and the transmit power are reported to the
OpenMobility Manager.
You can view these parameters in the OMM Web service and the OMP (DECT base stations > Device
list -> Show details – WLAN tab) and change the channel to a frequency without overlapping APs.
2.7.3 CHANNEL CONFIGURATION FEEDBACK FOR HT80
HT80 includes the HT40/HT20 bandwidth setting. A channel with a bandwidth of 80 MHz occupies 4
WLAN channels with a bandwidth of 20 MHz. If the WLAN profile options HT80/ HT40 MHz have been
activated, the necessary center channel will be automatically selected in the corresponding areas by
configuration itself.
HT80 is independent from 256 QAM / 3x3 MIMO. The ac standard is the first WLAN standard with 256
QAM modulation and the bandwidth HT80. The n standard supports 3x3 MIMO too, but the RFP43 has
only 2 antennas (for 2x2 MIMO) and the RFP48 has 3 antennas.
2.8DECT BASE STATION SYNCHRONIZATION
To ensure a seamless communication experience, the SIP-DECT system switches an ongoing DECT
phone call from one DECT base station to another if the radio communication quality drops below a
certain threshold. The seamless handover is possible only if the participating DECT base stations are
synchronized. DECT base station synchronization is performed via radio communication between DECT
base stations, which in turn requires a decent radio coverage planning (see section 8.2).
2.8.1 CLUSTERING AND PAGING AREAS
Your SIP-DECT system may include different locations, where the distances between the locations
prevent the RFPs from performing the over-the-air synchronization. In this case, you must split your
network into clusters (or “synchronization domains”). You assign DECT base stations to cluster numbers
for this purpose (see section 5.6.3 “DECT settings” or section 6.7.1.2, “DECT tab”). Note that overlap
between different clusters on one campus or site must be avoided.
If your SIP-DECT system consists of a very large number of DECT base stations, you should configure
the paging area size to optimize the signaling necessary for paging a DECT phone in throughout the
SIP-DECT system (see 6.7.2).
A separate cluster number is also required for a remote site (e.g., for a single DECT base station
servicing an office abroad). Also, if the VPN network connection to the isolated site’s DECT base station
cannot transport DHCP, you may use static IP address configuration for the single DECT base station
(see section 8.7.6).
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Enhanced Feature Overview
2.9DECT BASE STATION RESET TO FACTORY SETTINGS
A DECT base station can be reset to factory settings using a USB flash drive with a file on it named
“factoryReset”. When the USB flash drive is plugged into the DECT base station, the DECT base station
is reset to factory settings automatically. The file is automatically removed from the USB flash drive
during this process.
You can also reset the base station to default settings using the OM Configurator or the OMM Web
service (see section 8.7.8).
2.9.1 RFP4G RESET TO FACTORY DEFAULTS
To reset to factory defaults, do the following:
1. Use the configuration button to reset the RFP to factory defaults. After the reset to factory
defaults, the RFP operates in the standard SIP-DECT mode.
2. Press the Configuration button to start the configuration process. The LED starts flashing green
which indicates that the button is pressed.
3. Keep the button pressed until it starts flashing red (10 sec < t < 15 sec).
4. Release the button while the LED is flashing red to reset the RFP to factory defaults.
5. The RFP performs a reset to factory defaults and reboots. After reboot the RFP is started in the
standard SIP-DECT mode.
Note: If the button is pressed until it is flashing green, then the button has no effect.
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2.10 SYSTEM REDUNDANCY
The SIP-DECT solution offers a number of features to support system robustness and redundancy.
2.10.1 OMM STANDBY
The OMM is the central management entity in a SIP-DECT system and therefore constitutes a single
point of failure. It is possible to automatically transfer the OMM function to a second DECT base station
in case of failure or loss of network connection (see section 8.15).
In an OMM standby implementation, it could happen in rare cases that both OMMs become temporarily
active. In such a situation, all SIP-DECT users are SIP registered from to the configured PBX both
OMMs. This can cause problems if the PBX accepts only one registration per user (non-forking proxy).
To prevent this scenario, SIP-DECT has a mechanism to detect situations with two active OMMs. When
such a situation is detected, the remaining active OMM will SIP re-register all users to the PBX.
This mechanism can be enabled/disabled through the “SIP reRegister after 2 active OMM failover”
parameter in the OMP System -> SIP-> Supplementary Services menu (see section 5.4.3.6)
2.10.2 BACKUP SIP PROXY/REGISTRAR
To increase the operational availability of the system in critical environments like hospitals, the OMM
offers a new failover mechanism for the SIP server. Therefore, in addition to the primary proxy, outbound
proxy and registrar server, it is possible to configure two additional levels of backup servers named
“secondary” and “tertiary” servers (see section 8.20.3).
In addition, a keep-alive mechanism implemented in the OMM allows the automatic failover to
secondary/tertiary servers or automatic coming back to primary servers (see section 8.20.4).
2.10.3 CONFIGURABLE USER ACCOUNT FOR STANDBY CHECK
The “Standby OMM” feature of SIP-DECT allows configuration of the user account to be used to check
the availability of the iPBX. An availability check starts automatically in fail over situations.
The OMM starts a SIP registration for a specific DECT phone user and sends an OPTIONS request to
the configured SIP proxy. If there is an answer, the SIP proxy/registrar is considered reachable and the
standby OMM becomes active.
With previous SIP-DECT releases, the OMM used the user account with the lowest phone number for
the check procedure. To select a specific user account for this purpose, enable the “Used for visibility
checks” flag in the user settings (see section 6.10.4.2).
Please note: The “Used for visibility checks” flag can only be set for one user. The number
for visibility checks is shown under OMP Status -> Users -> Number menu. If the flag is
not set for a specific user, the OMM uses the user account with the lowest phone number.
2.10.4 USER DATA SYNCHRONIZATION (MIVOICE 5000 DUAL HOMING SUPPORT)
With SIP-DECT 6.1 and later, SIP-DECT supports MiVoice 5000 dual homing, to ensure that SIP-DECT
telephony services survive if the network connection to the OMM goes down. Dual homing is achieved
through user data synchronization across all OMMs in the system. Every peripheral OMM propagates
changes in user, device, Configuration over Air (CoA) profiles or SARI configuration to a central OMM.
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Enhanced Feature Overview
Every OMM in the installation (including the central OMM) can use a standby OMM. AXI is used to
distribute configuration changes between the central and peripheral OMMs.
For more information on this feature, see section 8.16.
2.10.5 MULTI-OMM MANAGER FOR OMM-CENTRALIZED MANAGEMENT
With SIP-DECT 7.0 and later, SIP-DECT supports centralized management through the Multi-OMM
Manager (MOM).
The Multi-OMM Manager (MOM) is a server application that provides centralized provisioning and
user/device data synchronization across multiple SIP-DECT sites within a SIP-DECT system.
Additionally, the MOM supports system-wide messaging.
Instead of deploying one OMM with DECT base stations installed at different sites, or deploying DECT
base stations and a dedicated OMM at each site, you can create a multi-site SIP-DECT system with
local survivability and centralized management capabilities. You deploy OMMs and DECT base stations
as a standalone system at each site, but manage the entire SIP-DECT system through the MOM
interface.
For more information on this feature, see the Multi-OMM Manager Configuration and Administration Guide.
2.11 SIMPLIFIED LICENSING
With SIP-DECT 6.0 or later, the licensing model is simplified. The system no longer distinguishes
between different DECT base station “soft-brands”, and some licenses are deprecated. See section
3.3.2 for more information.
Please note: New license files are not compatible with SIP-DECT 4.0 (or older) systems.
2.12 EXTENDED REGULATORY DOMAIN SUPPORT
SIP-DECT 6.1 enables operation of the SIP-DECT solution in more countries. The SIP-DECT system
can be operated in all countries that allow operation of DECT devices with frequency bands and transmit
power settings supported by the current SIP DECT phones and base stations. In most cases, this
requires different frequency channel and transmit power settings.
This feature is intended mainly for installations on cruise liners, where the SIP-DECT system requires a
switch of regulatory domain depending on the actual location of the ship. Such systems are planned and
installed based on a site survey with 100mW transmit power. The lower transmit power value is used at
all times, independent from the regulatory domain.
A new regulatory domain, 1910-1927MHz_250mW, has been added for South America. You can
configure this regulatory domain via the OMP (System -> Basic settings -> DECT tab); see section
6.5.1.2 for configuration details.
In addition, a new parameter is introduced to limit the DECT base station transmit power to 100mW,
independent of the active regulatory domain. The active transmit power is sent to the DECT phone when
it registers its location with the OMM. The DECT phone adjusts its transmit power to the value received
from the OMM.
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2.13 DECT PHONE FUNCTIONALITY
2.13.1 DECT PHONE DOWNLOAD OVER AIR
The Mitel 600 series DECT Phones can download and upgrade their firmware via DECT over the air.
As of SIP-DECT 6.0, the DECT base station software images (iprfp3G.dnld and iprfp4G.dnld) contains
the Mitel 600 DECT phone software. The 3rd generation RFPs can house the SIP-DECT 8.0 OMM as in
previous releases. The OMM supports the 2nd, 3rd and 4th generation RFPs. If the DECT base station
houses the OMM, the OMM uses this software to update the DECT phones. The DECT base station
OMM no longer automatically attempts to load a DECT phone software image from a DECT base station
software URL when provided via DHCP or local configuration.
For specific maintenance purposes only, SIP-DECT allows configuration of a URL via the OMM Web
service or OMP to use an alternative DECT phone software image (see section 5.4.1.8). The Mitel 600
DECT phone firmware packages are delivered in the “600.dnld” file for the OMM running on a DECT base
station.
For large installations using a Linux Server-hosted OMM, a DECT base station software images
(iprfp3G.dnld and iprfp4G.dnld) without Mitel 600 DECT phone software is available to reduce network
traffic in update scenarios.
The DECT phone firmware packages are included in the OMM installation package for Red Hat
Enterprise Linux (RHEL) and CentOS for the Linux server version of the OMM.
Please note: An DECT base station upgrade from SIP-DECT 3.0 to 6.0 or later is not
supported due to the extended DECT base station software image. The 3.0 software does
not accept the extended software image.
For large installations using a Linux Server OMM, the DECT base station software images
(iprfp3G.dnld and iprfp4G.dnld) without Mitel 600 DECT phone software can be used. This
software image supports a direct RFP upgrade from SIP-DECT 3.0 to 6.1.
2.13.1.14
Generation RFP houses the OMM
th
The 4th generation RFPs come with more hardware resources in terms of CPU speed and memory. It is
recommended to operate the OMM on a 4G RFP.
Please note: If you move the OMM and you want to keep the existing dynamic user phone
relation which is stored in the OMM DB backup file, then activate the option Preserve
user device relation at DB restore in the new OMM. The new OMM restores the relation
between the user and the DECT phone during DB import.
If this option is not set, then all dynamic user gets logged out from their DECT phones
when importing the OMM DB into the new OMM.
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Enhanced Feature Overview
If the OMM is operated on 4G RFP, then 1024 DECT users and phones are supported. (512 DECT users
and phones if the OMM is operated on a 3G RFP).
The 4G RFP comes with the configuration button, which allows to switch to the SIP-DECT with Cloud-ID
(SDC) mode. As of SIP-DECT 8.0, a 4G RFP is required to run an SDC OMM.
2.13.2 CENTRAL DECT PHONE CONFIGURATION OVER AIR (COA)
SIP-DECT 6.0 and later supports centralized DECT phone configuration over the air (CoA) for Mitel 602
DECT phones. DECT phone CoA is useful for deployment of special configuration to a single DECT
phone or a large number of DECT phones. No local access to the DECT phone is required.
DECT phone CoA is implemented by providing additional configuration information to the well-known
configuration files or providing profiles via OMP. Configuration can be changed at the device level
(DECT subscription) or the user level (based on login).
Configuration of all DECT phones with a predefined default profile is also supported. Up to 20 possible
DECT phone profiles make it easy to adapt to different usage scenarios for heterogeneous user groups
(e.g., nurses and doctors in hospital environments). See section 8.23 for more information on this
feature.
2.13.2.1CoA enhancements
The Mitel 602 DECT phone 6.1 firmware (bundled with SIP-DECT release 6.1) includes new features
which are configurable via Configuration over Air (CoA).
New configuration commands allow you to overwrite local key programming on the Mitel 602 DECT
phones. SIP-DECT 6.1 also supports configuration of the new XML application hooks introduced for the
XML terminal interface via CoA (see section 2.32).
In addition, the Mitel 602 DECT phone 6.1 firmware introduces variable lists. A variable list includes
a number of items, each of which corresponds to an action to be performed on the DECT phone. For
more information, see section 8.23.5.
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SIP-DECT OM System Manual
2.13.3 OMM DECT PHONE PROVISIONING
While some users in the SIP-DECT system use a dedicated DECT phone, it is also possible to operate
shared DECT phones. The SIP-DECT solution provides an enhanced DECT phone sharing and
provisioning concept that enables the management of a large number of DECT phones and provides a
flexible subscription model.
The SIP-DECT system allows logging into and out of different DECT phones with a personalized user
account, import of user data from an external provisioning server, automatic subscription of new DECT
phones, and control of subscription-specific system functions from DECT phones.
See the SIP-DECT DECT Phone Sharing and Provisioning Guide for details on this feature.
2.13.4 MITEL 600 DECT PHONE DIAL EDITOR MODE
It is assumed that most customers use digits only in their dialing plan, and that it is more convenient if
dial editors support only the digits 0 to 9, * and #. The Dial editor supports digits only flag (on the
OMP (System -> Advanced settings -> DECT Phones tab) enables this mode. In this mode, the * has
the meaning of a digit to be merely dialed, even if it short-pressed.
If the mode is not set to digits only, the short pressed * will change the editor mode to alphanumeric.
By default, the text shown on the Mitel 600 DECT phone at start up is Mitel-specific (branded in the
firmware). Customers can also define their own text (on the OMP (System -> Advanced settings ->
DECT Phones tab).
2.13.6 OMM-CENTRALIZED CALL LOGS
SIP-DECT 7.0 introduces support for OMM-centralized call logs for SIP-DECT systems using the Mitel
MX-ONE call server.
The OMM-centralized call log features the OMM manager caller and redial list entries pushed by the MXONE call server for all DECT phones in the system. When this feature is enabled, DECT phone users
can access the OMM-centralized call log on their DECT phones using the existing XML hooks for caller
list and redial list.
The OMM also handles the “missed call” notifications for the DECT phone. If the number of missed calls
changes, the OMM sends the information to the DECT phone.
The OMM sorts the call log entries according to the most recent entry. Call log entries from the same day
are listed with the time stamp and older entries are listed with the date stamp.
For information on how to enable OMM-centralized call logs, see section 5.9.5.2 (Modifying an XML
Hook via the OMM web service) or section 6.12.8.2 (Modifying an XML Hook via the OMP).
2.13.7 USER INDIVIDUAL DECT PHONE PIN KEY LOCK
2.13.7.1OMM Key Lock with PIN Management
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