SpectraLink NetLink SVP010, NetLink SVP020, NetLink SVP100 Installation, Configuration And Administration

NetLink SVP Server

SVP100
SVP020
SVP010

Installation, Configuration, and Administration

For Cisco and Mitel IP environments

PN 72-0178-01

Issue F

SpectraLink Corporation Installation, Configuration, and Administration

NetLink SVP Server (within IP environments)

Notice

SpectraLink Corporation has prepared this document for use by SpectraLink personnel and customers. The
drawings and specifications contained herein are the property of SpectraLink and shall be neither reproduced in
whole or in part without the prior written approval of SpectraLink, nor be implied to grant any license to make,
use, or sell equipment manufactured in accordance herewith.

SpectraLink reserves the right to make changes in specifications and other information contained in this
document without prior notice, and the reader should in all cases consult SpectraLink to determine whether
any such changes have been made.

The terms and conditions governing the sale of SpectraLink hardware products and the licensing of
SpectraLink software consist solely of those set forth in the written contracts between SpectraLink and its
customers. No representation or other affirmation of fact contained in this document including but not limited
to statements regarding capacity, response-time performance, suitability for use, or performance of products
described herein shall be deemed to be a warranty by SpectraLink for any purpose, or give rise to any liability of
SpectraLink whatsoever.

In no event shall SpectraLink be liable for any incidental, indirect, special, or consequential damages
whatsoever (including but not limited to lost profits) arising out of or related to this document, or the
information contained in it, even if SpectraLink has been advised, knew, or should have known of the
possibility of such damages.

Trademark Information

SpectraLink®
LinkPlus
Link
NetLink
SVP
Are trademarks and registered trademarks of SpectraLink Corporation.
The SpectraLink logo is a registered trademark in the United States of America and in other countries.
All other trademarks used herein are the property of their respective owners.

SpectraLink Corporation
5755 Central Avenue
Boulder, CO 80301
303 440 5330 or
800 676 5465
www.spectralink.com

Copyright © 2001 to 2007 SpectraLink Corporation. All rights reserved

Information in this document is subject to change without notice and does not represent a commitment on the
part of SpectraLink Corporation. The software described in this document is furnished under a license and
may only be used pursuant to the terms of (1) SpectraLink's software license agreement available at

http://www.spectralink.com/softwareUpdates

OR (2) the terms and conditions previously agreed to in writing
between the user and SpectraLink Corporation OR (3) the terms and conditions previously agreed to in writing
between the user and an authorized SpectraLink reseller (each, the “Agreement”). The software may be used
only in accordance with the terms of the Agreement. No part of this manual, or the software described herein,
may be reproduced or transmitted in any form or by any means, electronic or mechanical, including
photocopying and recording, for any purpose except for the sole intent to operate the product or without the
express written permission of SpectraLink Corporation.

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SpectraLink Corporation Installation, Configuration, and Administration

NetLink SVP Server (within IP environments)

IMPORTANT SAFETY INFORMATION

Follow these general precautions while installing telephone equipment:

• Never install telephone wiring during a lightning storm.

• Never install telephone jacks in wet locations unless the jack is specifically designed for

wet locations.

• Never touch uninsulated telephone wires or terminals unless the telephone line has

been disconnected at the network interface.

• Use caution when installing or modifying telephone lines



Please visit spectralink.com to view regulatory declarations.

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SpectraLink Corporation Installation, Configuration, and Administration

NetLink SVP Server (within IP environments)

Table of Contents

1. About This Document 5

1.1 SpectraLink Corporation Model Numbers 5

1.2 Related Documents 5

1.3 Customer Support Hotline 5

1.4 Icons and Conventions 5

2. NetLink SVP Server Overview 6

2.1 SpectraLink Voice Priority (SVP) 6

2.2 SVP Server Models 6

2.3 The Timing Function 6

2.4 Internal Gatekeeper 6

2.5 Multiple SVP Servers/Master SVP Server 7

2.6 Multiple NetLink SVP Server Capacities 7

2.7 Notes on System Configuration 9

2.8 System Diagram 10

2.9 System Components 11

2.10 The Front Panel of the NetLink SVP Server 13

3. Installing the NetLink SVP Server 14

3.1 Required Materials 14

3.2 Locate the NetLink SVP Server 14

3.3 Install the NetLink SVP Server 14

4. Configuring the NetLink SVP Server 16

4.1 Connecting to the NetLink SVP Server 16

4.2 The NetLink SVP-II System Menu 17

4.3 Network Configuration 18

4.4 SVP Server Configuration 21

4.5 Change Password 25

5. Swapping/Adding/Deleting SVP Servers 27

6. Software Maintenance 28

7. Troubleshooting via System Status Menu 29

7.1 Error Status 30

7.2 Network Status 31

7.3 Software Version 33

7.4 Gatekeeper Database 34

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SpectraLink Corporation Installation, Configuration, and Administration

NetLink SVP Server (within IP environments)

1. About This Document

This document explains how to configure and maintain one or more NetLink SVP
Servers (models SVP100, SVP020, SVP010) within IP telephony environments.

1.1 SpectraLink Corporation Model Numbers

This document covers the following registered model number:

SVP100

1.2 Related Documents

NetLink Wireless Telephone: Configuration and Administration

for

Cisco CallManager and IP Phone 7960 Emulation

for

Mitel Networks 3300 and SX-200 ICP with 5220 IP Phone emulation

(72-1084-02)

Available at http://www.spectralink.com/resources/manuals.jsp.

NetLink Wireless Telephone WLAN Compatibility List (72-9000-00)
Access Point Configuration Note

corresponding to the type of access point.). Available at

http://www.spectralink.com/resources/wifi_compatibility.jsp.

(72-99xx-00 where xx indicates a number

(72-1082-02)

Deploying Enterprise-Grade Wi-Fi Telephony

Available at http://www.spectralink.com/resources/white_papers.jsp.

1.3 Customer Support Hotline

SpectraLink wants you to have a successful installation. If you have questions please
contact the Customer Support Hotline at [phone]. The hotline is open
Monday through Friday, 6 a.m. to 6 p.m. Mountain time.

1.4 Icons and Conventions

This manual uses the following icons and conventions.

Caution! Follow these instructions carefully to avoid danger.

Note these instructions carefully.



NORM

This typeface indicates a key, label, or button on the NetLink SVP Server.

white paper.

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SpectraLink Corporation Installation, Configuration, and Administration

NetLink SVP Server (within IP environments)

2. NetLink SVP Server Overview

The NetLink SVP Server is an Ethernet LAN device that works with access points
(APs) to provide QoS on the wireless LAN. Voice packets to and from the NetLink
Wireless Telephones are intercepted by the NetLink SVP Server and encapsulated
for prioritization as they are routed to and from an IP telephony server.

2.1 SpectraLink Voice Priority (SVP) and Quality of Service

SpectraLink Voice Priority (SVP) is the SpectraLink quality of service (QoS)
mechanism that is implemented in the wireless telephone and AP to enhance voice
quality over the wireless network. SVP gives preference to voice packets over data
packets on the wireless medium, increasing the probability that all voice packets are
transmitted efficiently and with minimum delay. SVP is fully compatible with IEEE

802.11b standards.

NetLink Wireless Telephones support basic WMM (Wi-Fi Multimedia) if also
supported by the AP as part of the 802.11e protocol. If the AP supports WMM, the
wireless telephone automatically discovers and uses it. WMM does not replace the
NetLink SVP Server.

2.2 SVP Server Models

The SVP Server is available in three models. Which model is selected for your facility
depends on current and expected capacity. All SVP Servers within a subnet must be
the same model type.

• SVP100: Serves 80 calls simultaneously.

• SVP020: Serves 20 powered-on handsets.

• SVP010: Serves 10 powered-on handsets.

See the following capacity tables for multiple SVP Server system capacities.

All SVP Server models are installed, configured and administered according to the
instructions in this document. The model information is available on the Software
Version screen. See section 7.3

2.3 The Timing Function

NetLink SVP Servers provide the connection or "gateway" to the IP PBX for the
wireless telephones and the "timing" function for active calls. This "gateway"
function is distributed across the SVP Servers.

The number of active SVP Servers is determined dynamically. Whenever SVP
Servers are added to or removed from the system, the distribution of the "timing"
function for active calls is affected.

Software Version

.

2.4 Internal Gatekeeper

A gatekeeper is required in certain H.323 protocol systems. The gatekeeper that
resides on the SVP Server is designed for small applications using the NetLink
Wireless Telephones under the H.323 protocol.

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SpectraLink Corporation Installation, Configuration, and Administration

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The internal gatekeeper is not designed to scale beyond the capacity of a single SVP
Server and does not provide the advanced features required for larger installations. It
has a limit of 1000 registration records.

2.5 Multiple SVP Servers/Master SVP Server

Multiple SVP Server environments are those which have more than one NetLink
SVP Server. Up to four SVP010 models or up to two SVP020 models may be
installed in any one subnet. Up to 16 models of SVP100 Servers may be installed in
any one subnet. All SVP Servers must be in the same subnet.

In a system comprised of multiple SVP Servers, a master SVP Server must be
identified. The master SVP Server must have a static IP address. The wireless
telephones and the other SVP Servers locate the master by using a static IP address,
DHCP, or DNS.

The master SVP Server performs important coordinating functions. The loss of a
non-master SVP Server does not significantly affect the operation of the remaining
SVP Servers but results in the re boot of all handsets. However, the loss of the
master SVP Server results in a loss of all communication between all of the SVP
Servers. This also means that the loss of the master SVP results in the loss of all
active calls and wireless telephones cannot check in until communication with the
master is reestablished.

2.6 Multiple NetLink SVP Server Capacities

The system capacity of each SVP Server model is shown in the tables below. Note
that SVP Server models may not be combined within one subnet.

NetLink SVP010 and SVP020 Server Capacity

The system capacity of the SVP010 and SVP020 is measured by number of powered­on handsets. If this number exceeds the maximum, the handset that cannot be
served will display an error and will not connect to the SVP Server. Other handsets
will not be affected.

Number of SVP

Servers

1 10 20
2 20 40
3 30 N/A
4 40 N/A

NetLink SVP100 Server Capacity

The capacity of the SVP100 Server is determined by active calls. The table below
shows the capacity of an IP gateway in a multiple-SVP Server environment. The
table shows the total possible calls at 100% active calls. However, since it is unlikely
that all handsets will be in use at the same time, the table then analyzes the number
of handsets that could be installed in any given system where 10%, 15% or 20% of
the handsets are in active calls at any one time. The calculations are not linear due to

Number of handsets

SVP010 SVP020

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SpectraLink Corporation Installation, Configuration, and Administration

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the Erlang1 calculation for telephony traffic. The possible installed handsets figures
are approximate and meant as a guideline and not as an absolute recommendation
for any facility.

Possible installed handsets

@

10% in

active calls

15% in

active calls

@

@

20% in

active calls

Number of

SVP

Servers

Number of calls

possible

per Server

Total possible

installed handsets

@

100% in

active calls

Erlang

1 80 80 65 500 433 325
2 64 128 111 1000 740 555
3 60 180 160 1500 1067 800
4 58 232 211 2000 1407 1055
5 57 285 262 2500 1747 1310
6 56 336 312 3000 2080 1560
7 56 392 367 3500 2447 1835
8 55 440 415 4000 2767 2075

9 55 495 469 4500 3127 2345
10 55 550 524 5000 3493 2620
11 55 605 578 5500 3853 2890
12 54 648 621 6000 4140 3105
13 54 702 674 6500 4493 3370
14 54 756 728 7000 4853 3640
15 54 810 782 7500 5213 3910
16 54 864 836 8000 5573 4180

1

An Erlang is a unit of telecommunications traffic measurement. Strictly speaking, an Erlang represents the continuous use of one voice

path. In practice, it is used to describe the total traffic volume of one hour.

Erlang traffic measurements are made in order to help telecommunications network designers understand traffic patterns within their voice
networks. This is essential if they are to successfully design their network topology and establish the necessary trunk group sizes.

Erlang traffic measurements or estimates can be used to work out how many lines are required between a telephone system and a central
office (PSTN exchange lines), or between multiple network locations.

Please visit www.erlang.com

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for additional information.

SpectraLink Corporation Installation, Configuration, and Administration

NetLink SVP Server (within IP environments)

2.7 Notes on System Configuration

In an IP system using subnets to differentiate telephony areas, each subnet



must have its own APs. Each subnet may require an SVP Server to
maintain voice quality, but this depends on traffic volume and router
capacity.

Multiple SVP Server environments are those which have more than one
SVP Server. A master SVP Server must be identified in a multiple-SVP
Server environment.

SVP Server models may not be combined within one subnet. More than
one SVP Server model type may be used within a facility if installed on
different subnets.

Wireless telephones cannot roam with uninterrupted service between
subnets unless specific LAN components are present. Certain
AP/Ethernet switch combinations establish a layer-2 tunnel across subnets
that enables the handsets to roam. Without this capability, any call in
progress will be dropped when the user moves out of range and the
handset must be power cycled in order to resume functionality in the new
subnet area.





Please see
configuration information when installing multiple SVP Server models
across several different subnets.

IP multicast addresses are used when NetLink i640 and 8030 Wireless
Telephones are installed. This requires that multicasting be enabled on the
subnet used for the NetLink Wireless Telephones, SVP Server, and
telephony gateways.

Routers are typically configured with filters to prevent multicast traffic
from flowing outside of specific domains. The wireless LAN can be placed
on a separate VLAN or subnet to reduce the effects of broadcast and
multicast traffic from devices in other network segments.

The NetLink SVP Server requires a Cat. 5 cable connection between its
network port and the Ethernet switch. The NetLink SVP Server auto­negotiates to the type of port on the Ethernet switch and supports 10Base­T, 100Base-T, full-duplex and half-duplex port types.

Deploying Enterprise-Grade Wi-Fi Telephony for detailed

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SpectraLink Corporation Installation, Configuration, and Administration

NetLink SVP Server (within IP environments)

2.8 System Diagram

The following diagram shows multiple NetLink SVP Servers residing on a network
with an IP telephony gateway and IP telephony server, wireless LAN APs, and
Ethernet switch:

Wireless

Telephones

optional

Wireless

POS

access point

access point

TFTP

server

Ethernet switch

IP gateway

PSTN

or

PBX

NetLink SVP Server

master

NetLink SVP Server

NetLink SVP Server

(showing

optional
multiple

SVP

Servers)

IP

phones

Device supplied by

SpectraLink

Ethernet cable
Phone cable

(IP telephony system example)

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SpectraLink Corporation Installation, Configuration, and Administration

NetLink SVP Server (within IP environments)

2.9 System Components

NetLink e340/h340/i640 and 8000 Series Wireless Telephones

Employees can carry wireless telephones to make and receive calls as they move
throughout the building. The wireless telephones are to be used on-premises; they
are not cellular or satellite phones. Just like wired telephones, they can receive calls
directly, receive transferred calls, transfer calls to other extensions, and make outside
and long distance calls (subject to the restrictions applied in your facility.)

Access points

Supplied by third party vendors, APs provide the connection between the wired
Ethernet LAN and the wireless (802.11) LAN. APs must be positioned in all areas
where wireless telephones will be used. The number and placement of APs will
affect the coverage area and capacity of the wireless system. Typically, the
requirements for use of NetLink Wireless Telephones are similar to those of wireless
data devices. Contact SpectraLink, or a certified SpectraLink distributor, for specific
information about your facility’s needs.

The NetLink system must connect to APs that utilize SpectraLink Voice Priority
(SVP). Contact SpectraLink, or a certified SpectraLink distributor, to verify that
your AP and its software version are supported.

Ethernet switch

A component in the wired Ethernet LAN infrastructure. Switches interconnect
multiple network devices, including APs and other components. Ethernet switches
are required to provide the higher performance network connections needed to
handle combined voice and data traffic.

Router

A router is an optional component in the wired Ethernet LAN infrastructure that
separates a wired LAN into segments so that network traffic is restricted to those
segments that are directly involved in the communication. Installation of a network
router is recommended in larger networks, where there may be significant network
traffic not related to the wireless LAN. A router will isolate the wireless LAN from
the associated wired LAN so that they are not impacted by each others’ traffic. The
NetLink SVP Servers, the APs, and their associated Ethernet switch must all be on
the same “side” of the router.

NetLink SVP Server

The NetLink SVP Server manages call network traffic as detailed in this document.

Administrative computer

An administrative computer is required for setup and maintenance of the NetLink
SVP Server. This computer may be temporarily connected directly to the component
or to the network; a dedicated computer is not required. Some installations use a

laptop to configure and maintain system components.

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