Nortel CS 1000 Series User manual

Nortel Communication Server 1000
SIP DECT Fundamentals
Release: 5.5
Document Revision: 01.07
www.nortel.com
NN43120-123
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Nortel Communication Server 1000
Release: 5.5
Publication: NN43120-123
Document release date: 6 January 2009
Copyright © 2008-2009 Nortel Networks
All Rights Reserved.
Sourced in Canada
LEGAL NOTICE
While the information in this document is believed to be accurate and reliable, except as otherwise expressly
agreed to in writing NORTEL PROVIDES THIS DOCUMENT "AS IS" WITHOUT WARRANTY OR CONDITION OF
ANY KIND, EITHER EXPRESS OR IMPLIED. The information and/or products described in this document are
subject to change without notice.
Nortel, the Nortel Logo, the Globemark, SL-1, Meridian 1, and Succession are trademarks of Nortel Networks.
All other trademarks are the property of their respective owners.
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Contents
New in this release 7
Other changes 7
Product overview 9
Navigation 9
Overview of SIP DECT 9
Types of SIP DECT configuration 12
Universal extension support 14
DECT handset features 16
CallPilot and Message Waiting Indication support 16
SIP DECT capacity limitations 17
Site planning 19
Navigation 19
Site planning overview 19
Position and use of available cabling 20
Radio coverage 20
Number of handset users 21
Site survey example 21
A normal site survey 21
Site planning example: Able-Studio 22
The facts for Able-Studio 22
The site survey process for Able-Studio 22
DAP deployment rules and requirements 27
Radio synchronization 27
IP network configuration 31
DAP power configuration 34
Initial critical points on the floor plan to identify 34
Rules and guidelines to locate cell centers 35
Coverage and signal strength calculation 37
Determine cell boundaries 38
Identify critical points and cell boundaries 39
Mark the points, centers, and boundaries on the floor plan 40
Deployment illustrations 42
Deployment terms 50
Nortel Communication Server 1000
SIP DECT Fundamentals
NN43120-123 01.07
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Copyright © 2008-2009 Nortel Networks
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Coverage terms 51
Deployment tool 52
Prepare the tool for deployment 54
How the deployment tool works 61
Using the deployment tool 62
Handset tones interpretation 63
Rules for outdoor deployment 63
DECT Deployment Kit 2 64
DAP deployment 67
Correct audio quality problems 71
Single and multiple floor deployment 72
Single floor deployment 72
Multiple floor deployment 78
Reengineer cells for high traffic areas 83
Traffic volume 83
The cell reengineering process 83
Cell division requirements in special cases 92
No office information 92
A mix of users with and without wired telephones in a cell 93
High handset density deployment 95
Limit the anticipated number of handsets 95
Subdivide a cell 95
Deployment review 97
Floor plan completion 97
Hardware installation 99
Navigation 99
Call server 99
Signaling server 99
PC (DAP controller) 100
DECT Access Points 100
Software requirements 103
Navigation 103
Call server software 103
Signaling server software 103
DAP controller software 103
Firewall protection 104
Internet information services 105
DHCP and TFTP servers 111
DAP Controller 130
System configuration 135
Navigation 135
Simple SIP DECT configuration 135
Nortel Communication Server 1000
SIP DECT Fundamentals
NN43120-123 01.07
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5
Configuration of settings using IP DECT Configurator 136
DAP manager configuration 150
Configuration on Element manager 154
NRS configuration 163
Call server configuration 170
Routed Head Quarter configuration 173
Choice of system configuration 174
Multi site mobility network configuration 175
Subscribe a multi site DECT handset 176
Import and export subscriptions 177
Configure NRS for multi site mobility network 178
Call server configuration to MSMN 179
Configuration of Personal Call Assistant 182
Configuration of Universal Extension (UEXT) on the remote system 182
System administration 185
Navigation 185
DAP manager overview 185
Subscription management 187
Subscribe a handset 187
Edit a subscription RPN 188
Disable a subscription 189
Remove a subscription 190
Delete a number 190
Use the DNR filter 191
Handset status 192
DAP management 194
Change a DAP Radio Part Number (RPN) 194
Reboot a DAP 195
Reboot all DAPs 195
Add a DN range 196
Back up and restore subscriptions 197
Subscription export and import 198
Export subscriptions 199
Import subscriptions 201
DAP reboot history 202
System archive 202
Handset firmware update 204
Central directory access tool 208
Supported database types 209
Installation 210
Configure SIP DECT for Central directory access 213
System maintenance 215
Navigation 215
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SIP DECT Fundamentals
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DAP LED indications 215
DAP firmware update 216
Remove and replace a DAP (if a new DAP is available) 217
Remove and replace a DAP (if a new DAP is not available at the moment) 218
System synchronization analysis 219
Synchronization Analyzer interface 220
Export and import SIP DECT system 228
Export a system 228
Import a system 229
DAP Controller deactivation 230
DAP Controller software deinstallation 230
DAP Controller software update 231
Troubleshooting 232
If DAP is not working 232
If you cannot make calls from a DECT handset to an IP/TDM telephone on the
call server 233
If you cannot make calls between DECT handsets 234
If you have problems 236
System survey 236
System archive 238
Network packet capture traces 238
Location builder tool 239
Use the Location builder tool 239
Create a location file 241
Maintenance 246
Nortel Communication Server 1000
SIP DECT Fundamentals
NN43120-123 01.07
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Copyright © 2008-2009 Nortel Networks
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New in this release
Nortel Communication Server 1000 (CS 1000) Release 5.5 introduces
Nortel Session Initiation Protocol (SIP) Digital Enhanced Cordless
Telecommunications (DECT). SIP DECT includes new SIP DECT Access
Points (DAP).
Other changes
This section describes the detailed history of past releases of this
document.
Revision History
Date Description
January 2009 Standard 01.07. This document is up-issued for Release 5.5
with editorial changes.
December
2008 Standard 01.06. This document is up-issued for Release 5.5, in response to change requests for content related to SIP DECT
4.1.
July 2008 Standard 01.05. This document is up-issued in response to
change requests.
July 2008 Standard 01.04. This document is up-issued in response to
change requests.
May 2008 Standard 01.03. This document is up-issued in response to
change requests.
March 2008 Standard 01.02. This document is up-issued in response to
change requests.
February
2008 Standard 01.01. This is a new document issued to support Communication Server 1000 (CS 1000) Release 5.5. Some
of the information in this new document was previously
contained in the following document: DECT Fundamentals
(NN43120-114).
Nortel Communication Server 1000
SIP DECT Fundamentals
NN43120-123 01.07
6 January 2009
Copyright © 2008-2009 Nortel Networks
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8New in this release
Nortel Communication Server 1000
SIP DECT Fundamentals
NN43120-123 01.07
6 January 2009
Copyright © 2008-2009 Nortel Networks
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Product overview
Navigation This chapter contains information about the following topics.
•“Overview of SIP DECT” (page 9)
Overview of SIP DECT
You can use Nortel Session Initiation Protocol (SIP) Digital Enhanced
Cordless Telecommunications (DECT) to move without restriction about
your work site while conducting telephone conversations, using wireless
handsets. The Nortel SIP DECT system includes one or more DECT
access points (DAPs or basestations) connected to the TLAN.
A minimal SIP DECT system has the following five main components.
•Call Server
•Signaling Server
•PC with DAP controller software installed
•DAP
•handset
Use the following four tools to configure an IP DECT system.
•Element manager or overlay program for Call Server
•Element manager and, if required, Network Routing Service (NRS)
manager for Signaling Server
•IP DECT Configurator
•DAP manager IP DECT
Note: The IP DECT Configurator and the DAP manager IP DECT are
available as a part of the DAP controller software package.
The following software releases are required on the main system
components.
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SIP DECT Fundamentals
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10 Product overview
•Call Server, Release 5.5
•Signaling Server, Release 5.5
•DAP software 4910b414.dwl or later
•DAP controller 4.1 or later (PC software)
You can connect IP phones to the TLAN, connect TDM phones to the
Call Server, Voice Gateway Media Cards and other required cards in Call
Server. Use Voice Gateway Media Cards for IP-to-TDM calls and for
conference calls involving IP phones or DECT handsets on basestations.
The configuration can also include a PC with DECT Messenger to provide
the DECT messaging service on SIP DECT.
Note: For SIP DECT to function properly, you must install a dedicated
Signalling Server running the SIP Gateway application. Other
applications, such as H323 Gateway, NRS, and IP Phones, can be used
on the same Signaling Server without limitations.
Use the Dynamic Host Control Protocol (DHCP) server or the Trivial File
Transfer Protocol (TFTP) server unless you use a DAP configuration
without DHCP or TFTP. You can configure the system to use two separate
servers; one for DHCP and the other for TFTP. If the system requires
DAP configuration without DHCP or TFTP, the DHCP or TFTP server is
required during installation or configuration changes.
Figure 1 "SIP DECT configuration" (page 11) shows a general SIP DECT
system configuration.
Nortel Communication Server 1000
SIP DECT Fundamentals
NN43120-123 01.07
6 January 2009
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Overview of SIP DECT 11
Figure 1
SIP DECT configuration
You can install the DHCP or TFTP services, DECT Messenger, and DAP
controller on a single server or PC. However, you can also choose to
install them on separate servers to enhance performance or facilitate
administration. You can also install Element manager, NRS manager,
and OTM on the same server, provided that the server has both a TLAN
network interface and an ELAN network interface. If the server you use is
incapable of supporting all of these applications, you can use more than
one server.
You connect the DAP to the Communication Server 1000 using the SIP
trunks that you configure between the DAP and the Signaling Server. Each
DAP communicates with the subscribed DECT handsets in its coverage
area, and it interacts with the Communication Server 1000 and with other
configured DAPs in the company network.
You can run SIP DECT on the following configurations.
•Communication Server 1000M or Communication 1000E
•Signaling Server running SIP Gateway
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SIP DECT Fundamentals
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12 Product overview
Use the SIP Redirect Server or SIP Proxy Server to perform the
appropriate NRS configuration for SIP DECT. You can run SIP
Redirect Server on Internet Server Platform (ISP) 1100, Call
Processor Pentium Mobile (CP PM) signaling server, or on IBM or HP
Commercial-off-the-shelf (COTS) servers under VxWorks. You can run
SIP Proxy Server on IBM or HP COTS servers under Linux. You can
run SIP Redirect Server on the same Signaling Server as SIP Gateway
dedicated to SIP DECT, or you can run SIP Redirect Server on a
stand-alone Signaling Server. If you install SIP Proxy Server you must use
a stand-alone COTS server. You cannot run SIP Gateway on the same
server as the SIP Proxy Server.
Types of SIP DECT configuration
Nortel SIP DECT can be implemented in various system configurations to
accommodate your needs. The most common Nortel SIP DECT system
configurations are as follows:
•Simple SIP DECT configuration provides seamless hand over between
DAPs. A simple SIP DECT configuration is shown in Figure 2 "Simple
SIP DECT network configuration" (page 12).
Figure 2
Simple SIP DECT network configuration
In simple DECT configuration, configure all SIP DECT devices in one
subnet based on one or more IP switches, which must support IP
multicast. Configure the switches as follows.
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Overview of SIP DECT 13
—Disable IGMP Snooping.
—Disable Spanning Tree Protocol (STP) on switch ports where SIP
DECT equipment connects
—If the switches serve more than one Virtual Local Area Network
(VLAN), configure all SIP DECT devices in one VLAN, so they
behave as one subnet
•Routed Head Quarter configuration
A Routed Head Quarter configuration provides seamless hand over
between DAPs. A Routed Head Quarter configuration is shown in
Figure 3 "SIP DECT configuration Routed Head Quarter" (page 13).
Figure 3
SIP DECT configuration Routed Head Quarter
Routed Head Quarter configuration requires different subnets
connected using one or more routers. The subnets in the network must
be part of one company network, and if you configure the subnets in
this fashion, SIP DECT behaves as one large SIP DECT system. Use
SIP DECT Routed Head Quarter configuration for a large campus
network that is split into different geographical subnets. The campus
must meet the following requirements.
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SIP DECT Fundamentals
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14 Product overview
—The network must support Quality of Service (QoS) and IP
connectivity throughout the Campus.
—Routers must support IP multicast routing.
—The IP multicast address for SIP DECT must be the same in all
subnets.
—multicast Time to live (TTL) must be greater than 1.
—In the SIP DECT configuration, you must enter the subnet mask for
all networks, for example, 255.255.248.0.
Universal extension support
DECT handsets subscribed on DAPs are external to Communication
Server 1000. The Communication Server 1000 does not control the state
of DECT handsets. Therefore, the Communication Server 1000
•cannot detect individual key-presses on DECT handsets
•cannot control cadences on DECT handsets
•cannot detect if a DECT handset is switched off and on
•cannot control the handset display content
A DECT handset subscribed on a DAP cannot use the same range
of features available to analog, digital, or UNIStim IP phones on the
Communication Server 1000.
Configuration and status information for subscribed DECT handsets is
provided using the Universal Extension (UEXT) feature on the Call Server.
No Associated Telephone (AST) or Computer-Telephone Integration (CTI)
capabilities are available for SIP DECT at the present time.
Each DECT handset has a local Directory Number (DN) in Communication
Server 1000. Use this local DN to subscribe the corresponding DECT
handsets on the SIP DECT system through SIP DECT manager. SIP
DECT manager is available on the server where you installed the DAP
controller.
Configure the UEXT associated with a DECT handset as follows.
•For the Primary DN of the UEXT (key 0 SCR), enter the local DN
associated with the DECT handset.
•For the Target DN of the UEXT (key 1 HOT P), enter the digits
required to access the SIP route (SIP Trunks) configured to access
DAPs, plus the local DN of the handsets. This consists of one of the
following.
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Overview of SIP DECT 15
—For access based on the configured Coordinated Dialing Plan
(CDP), compose the Target DN as follows. <TSC>+<LOCAL DN>.
—For access based on the configured Uniform Dialing
Plan (UDP), compose the Target DN as follows. <AC1 or
AC2>+<LOC>+<LOCAL DN>.
A UEXT corresponding to a DECT handset on the SIP DECT system
reflects the idle or busy status of the associated handset by a check for a
call processed between the handset and a DAP.
The Nortel Integrated SIP DECT system provides the following UEXT
features.
•Making and receiving simple calls
•Call Hold. There can be only one active call and one call on hold for a
handset
•Consultative or Announced Call Transfer
•Blind Call Transfer
•Participation in a conference call if another party adds the DECT
handset to the conference
•Calling Line ID (CLID) and Calling Party Name Display (CPND) for
simple calls not involving call transfer
•CLID and CPND for an internal line (digital or IP phone with display)
calling to, or receiving a call from a DECT handset
•Sending DTMF tones through the established connection to interact
with the called line (party), for example, to work with CallPilot
•Support for a voice mailbox on CallPilot and MWI
•Call Forward No Answer
•Call Forward By Time of Day
•Call Forward Busy
•Hunting
•Call Restrictions applicable to a UEXT
•Twinned configuration (typically a desk phone plus a DECT handset)
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SIP DECT Fundamentals
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16 Product overview
DECT handset features
The user of a DECT handset subscribed on SIP DECT can do the
following.
•Make calls to valid DNs except restricted or blocked DNs.
•Receive and answer calls from the Call Server. If CPND is available,
the name of the caller and DN appear on the handset display. The
position and appearance of the name DN on the display depend on the
firmware installed on the handset.
•Put the active call on hold by pressing the Rkey on the handset.
Return to the held call by pressing the Rkey. if a call is put on hold,
another call can be made from the handset. After the second call is
established, the user can switch between the two calls with the Rkey.
•Transfer a call to another DN
—To perform a Blind Transfer
Put the current call on hold, call the required DN and immediately
release from the call.
—To perform a Consultative Transfer
Put the current call on hold, call the required DN, wait for the
answer and release the call after the DN answers.
•Press digit keys on the handset during an established call. DTMF
tones are sent to the other party on the call.
You cannot use a DECT handset to configure Call Forward or Hunting,
or to configure Call Restrictions. You can configure these options from
the Call Server using overlays, or if a twinned configuration is used, the
twinned desk phone can be used to configure Call Forward for its Primary
DN with the existing keys or with Flexible Feature Codes (FFC).
CallPilot and Message Waiting Indication support
CallPilot can be used with DECT handsets subscribed on SIP DECT.
Call Forward No Answer can be configured for the Primary DN of the
UEXT so that the calls which are not answered on the corresponding
DECT handset or IP phone (in the case of a twinned configuration) are
forwarded to CallPilot. Calls can also be forwarded to CallPilot as busy
treatment for the Primary DN.
The CallPilot system can be called from a DECT handset and the user of
the handset can login to the voice mailbox with the corresponding DN and
password. The user can then use the voice menus of the system as usual.
Message Waiting Indications can be sent to the DECT handset through
the SIP Trunk. This is achieved by configuring additional DNs (to which
CallPilot sends MWI) for the voice mailbox corresponding to the UEXT
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Overview of SIP DECT 17
Primary DN. The additional DN configured in CallPilot is the external DN of
DECT handset, that is, the Target DN on the UEXT corresponding to the
DECT handset.
Communication Server 1000 only supports the so-called Unsolicited MWI
NOTIFY model
An external SIP UA cannot SUBSCRIBE to MWI NOTIFY messages and
cannot request the current status of MWI for the DN from the system
(by sending SUBSCRIBE messages). Instead of that a SIP UA has
to be ready to get MWI NOTIFY messages from system even if it did
not SUBSCRIBE to those and it has to update MWI according to those
messages only.
Due to the Unsolicited MWI NOTIFY model in Release 5.5, the DECT
handset can only rely on the MWI notifications sent by Communication
Server 1000. Therefore, the MWI indication based on that existing
mechanism may not be in the correct state on the DECT handset if the
handset was turned off and then turned on. Also, the MWI indication
may not be in the correct state if the user of the handset goes out of the
coverage area of the SIP DECT system and then enters the coverage area
again. In such a situation, the MWI indication on the DECT handset is
guaranteed to be in the correct state only after the next MWI state change
happens in the CallPilot system.
If a twinned configuration is used for a DECT handset, the corresponding
IP or TDM phone always correctly reflects the current state of MWI,
assuming that it receives MWI notifications for its Primary DN from
CallPilot.
SIP DECT capacity limitations
The following capacity limitations apply to SIP DECT.
•a maximum of 12 simultaneous calls for each DAP
•a maximum of 256 DAPs on each network (where hand over and
synchronization between DAPs is possible)
•a maximum of 6000 DECT handsets on each SIP DECT system (there
can potentially be several isolated SIP DECT systems connected to
Communication Server 1000)
•a maximum of 1000 simultaneous calls on each network
•a maximum of 25 subscription records for each DAP
If the planned number of DECT handsets in a SIP DECT system is
equal to M, and the number of DAPs in that system is equal to N, M
must be less than or equal to N*25.
Consider the following additional capacity limitations based on the
Communication Server 1000 configuration characteristics.
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SIP DECT Fundamentals
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18 Product overview
•The number of available UEXTs is limited by the number of available
virtual Telephone Numbers (TN) in the system
•The number of DNs available for DECT handsets depends on the
configured dialing plan and the availability of the Directory Number
Expansion (DNXP) package (150).
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SIP DECT Fundamentals
NN43120-123 01.07
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19
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Site planning
Navigation This section contains information about the following topics.
•“Site planning overview” (page 19)
•“DAP deployment rules and requirements” (page 27)
•“Deployment tool” (page 52)
•“Using the deployment tool” (page 62)
•“DECT Deployment Kit 2” (page 64)
•“DAP deployment” (page 67)
•“Correct audio quality problems” (page 71)
•“Single and multiple floor deployment” (page 72)
•“Reengineer cells for high traffic areas” (page 83)
•“Cell division requirements in special cases” (page 92)
•“High handset density deployment” (page 95)
•“Deployment review” (page 97)
Site planning overview
The site planning process is an information gathering process that begins
with a site survey and ends with deploying SIP DECT. The information
received in the site survey determines customer requirements and the
number of cells required to support traffic.
This section contains information about a key piece of deployment
equipment, the DECT Radio Deployment Tool. Deployment is the process
of locating basestations at the site. For general information about the
deployment process, see “DAP deployment rules and requirements”
(page 27). For more information about how to prepare equipment for
deployment, see “Prepare the tool for deployment” (page 54).
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SIP DECT Fundamentals
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20 Site planning
ATTENTION
You can use a location builder tool to plan your site. For details, see “Location
builder tool” (page 239).
Other modules describe in detail the procedures related to deployment.
These procedures vary according to site details and user requirements.
Position and use of available cabling
Cables that connect the basestation to the DECT system must meet or
exceed the UTP Cat 5 standard. New cabling is required if the existing
cabling does not meet the standard.
Radio coverage
A basestation coverage list is required to indicate the following.
aareas where radio coverage is required;
bareas excluded from radio coverage due to the proximity of sensitive
electronic equipment;
careas where radio coverage is not required;
dareas where radio coverage is not feasible or requires specific
basestations;
eobjects inside buildings; and,
fdetails of furniture, cupboards, and machinery on every floor of the
building
If customers request that the basestation be installed out of sight, do not
mount basestations in unsuitable locations, such as behind stone columns,
next to air ducts or horizontally on the ceiling. Radio coverage cannot be
guaranteed if basestations are mounted in unsuitable locations.
Know in advance where coverage is required. Some examples of
coverage areas follow.
•elevators
•stairwells
•washrooms
•outdoor areas
Nortel Communication Server 1000
SIP DECT Fundamentals
NN43120-123 01.07
6 January 2009
Copyright © 2008-2009 Nortel Networks
.