Polycom SpectraLink 8000, SpectraLink 1725-36032-001 User Manual 2

SpectraLink 8000 SVP Server

SVP100

Administration Guide

for SRP

January 2008 Edition 1725-36032-001 Version F

SpectraLink 8000 SVP Server: Administration Guide for SRP

Trademark Information

Polycom® and the logo designs SpectraLink® LinkPlus Link NetLink SVP Are trademarks and registered trademarks of Polycom, Inc. in the United States of America and various countries. All other trademarks used herein are the property of their respective owners.

Patent Information

The accompanying product is protected by one or more US and foreign patents and/or pending patent applications held by Polycom, Inc.

No part of this manual, or the software described herein, may be reproduced or transmitted in any form or by any means, or translated into another language or format, in whole or in part, without the express written permission of Polycom, Inc.

Do not remove (or allow any third party to remove) any product identification, copyright or other notices.

Every effort has been made to ensure that the information in this document is accurate. Polycom, Inc. is not responsible for printing or clerical errors. Information in this document is subject to change without notice and does not represent a commitment on the part of Polycom, Inc.

Notice

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

Polycom 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 Polycom to determine whether any such changes have been made.

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 Polycom for any purpose, or give rise to any liability of Polycom whatsoever.

Contact Information

Please contact your Polycom Authorized Reseller for assistance.

Polycom, Inc. 4750 Willow Road, Pleasanton, CA 94588

http://www.polycom.com

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About this Guide

This document explains how to configure and maintain one or more SpectraLink 8000 SVP Servers within the SpectraLink 8000 Telephony Gateway system.

Polycom Model Numbers

This document covers the following registered model number:

SVP100

Customer Support Hotline

Polycom wants you to have a successful installation. If you have questions please contact the Customer Support Hotline at (800) 775-5330. The hotline is open Monday through Friday, 6 a.m. to 6 p.m. Mountain time.

Icons and Conventions

This manual uses the following icons and conventions.

Caution! Follow these instructions carefully to avoid danger.

Note these instructions carefully.

Label

This typeface indicates a key, label, or button on SpectraLink hardware.

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Contents

0 About this Guide ......................................................................3

1 SpectraLink 8000 SVP Server Overview ....................................7

Polycom Model Numbers..................................................................3

Related Documents.............................................................................3

Customer Support Hotline ................................................................4

Icons and Conventions.......................................................................4

SpectraLink Voice Priority (SVP) and Quality of Service ............7

Multiple SVP Servers..........................................................................8

The Timing Function ..........................................................................8

SpectraLink 8000 SVP Server Capacity............................................9

Notes on System Configuration......................................................10

System Diagram ................................................................................11

System Components .........................................................................12

The Front Panel of the SVP Server..................................................14

2 Installing the Spectralink 8000 SVP Server ..............................15

Required Materials............................................................................15

Locate the SVP Server.......................................................................15

Install the SVP Server .......................................................................16

3 Configuring the SpectraLink 8000 SVP Server..........................19

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Connecting to the SVP Server .........................................................19

The NetLink SVP-II System Menu .................................................20

SpectraLink 8000 SVP Server: Administration Guide for SRP

Network Configuration....................................................................21

SendAll .........................................................................................22

SVP Server Configuration................................................................24

Change Password..............................................................................27

4 Swapping/Adding/Deleting SVP Servers................................29

5 Software Maintenance............................................................31

Software Updates..............................................................................31

6 Troubleshooting via System Status Menu .................................33

Error Status ........................................................................................34

Network Status..................................................................................34

Software Version...............................................................................36

7 Safety Notices ........................................................................39

8 Index .....................................................................................40

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SpectraLink 8000 SVP Server Overview

The SVP Server is an Ethernet LAN device that works with APs to provide QoS on the wireless LAN. Voice packets to and from the SpectraLink 8000 Wireless Telephones are intercepted by the SVP Server and encapsulated for prioritization as they are routed to and from the SpectraLink 8000 Telephony Gateway.

One or more SVP Servers are required in systems with five or more SpectraLink 8000 Telephony Gateways. In systems with four or fewer SpectraLink 8000 Telephony Gateways, the SVP Server is not required because SVP is handled within the SpectraLink 8000 Telephony Gateway(s).

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 the IEEE 802.11b standard.

SpectraLink 8000 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 SVP Server.

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SpectraLink 8000 SVP Server: Administration Guide for SRP

Multiple SVP Servers

Multiple SVP Server environments are those which have more than one SVP Server. Up to 16 SVP Servers may be installed in any one subnet.

The Timing Function

In the SpectraLink Gateway environment, SVP Servers provide the "timing" function for active calls. In multiple SVP Server environments, the active calls are 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.

The addition of an SVP Server is detected as soon as the new SVP Server is up and running. The new SVP Server will immediately start providing the “timing” function for the appropriate wireless telephones. The user should not detect any change. The removal of an SVP Server is detected within one minute. During this time, any wireless telephone that was using the SVP Server that was removed will be affected. If the wireless telephone was not in a call, it may lose contact with its Gateway, resulting in a check-out/check-in sequence. If the wireless telephone was in a call, the audio will be lost and the call will be dropped.

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SpectraLink 8000 SVP Server Overview

SpectraLink 8000 SVP Server Capacity

The table below shows the capacity of SpectraLink 8000 Telephony Gateways 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 15%, 25% or 50% of the handsets are in active calls at any one time. The calculations are not linear due to the Erlang 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.

Total

Number

SVP

Servers

1 120 120 15 103 240 240 206 2 120 240 30 111 480 480 438 3 120 3202 40 160 640 640 640

Number of

calls

possible

per Server

possible installed

handsets @ 100% in active calls

Number of

SpectraLink

8000

Telephony

Gateways

required

Erlang

Possible installed handsets

@ 15% in

active

calls

@ 25% in

active

calls

@ 50% in

active

calls

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

Limited by the eight simultaneous calls supported by each SpectraLink 8000 Telephony Gateway.

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www.erlang.com for additional information.

SpectraLink 8000 SVP Server: Administration Guide for SRP

Notes on System Configuration

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 Best Practices for Deploying Enterprise-Grade Wi-Fi Telephony for detailed configuration information when installing multiple SVP Server models across several different subnets.

Subnets are not recommended in SpectraLink 8000 Telephony Gateway environments.

IP multicast addresses are used when SpectraLink i640 and 8030 Wireless Telephones are installed. This requires that multicasting be enabled on the subnet used for the SpectraLink 8000 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 SVP Server requires a Cat. 5 cable connection between its network port and the Ethernet switch. The SVP Server autonegotiates to the type of port on the Ethernet switch and supports 10Base-T, 100Base-T, full-duplex and half-duplex port types.

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System Diagram

The following diagram shows one SpectraLink 8000 SVP Server residing on a network with five SpectraLink 8000 Telephony Gateways, wireless LAN APs, and Ethernet switch:

SpectraLink 8000 SVP Server Overview

Admin

computer

access point

SpectraLink 8000

SVP Server

SpectraLink

Wireless Telephones

optional

Wireless

POS

CAT 5 cable 25 pair cable Multiple phone cables

Device supplied

by SpectraLink

access point

SpectraLink

Wireless Telephones

Ethernet Switch

SpectraLink 8000

Telephony Gateway

SpectraLink 8000

Telephony Gateway

SpectraLink 8000

Telephony Gateway

SpectraLink 8000

Telephony Gateway

SpectraLink 8000

Telephony Gateway

Demarc block

PBX

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Desksets

(SpectraLink 8000 Telephony Gateway system example)

SpectraLink 8000 SVP Server: Administration Guide for SRP

System Components

SpectraLink e340/h340/i640 and 8020/8030 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. They are connected to the facility's existing telephone system and to the SpectraLink 8000 Telephony Gateway. 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.)

SpectraLink 8000 Telephony Gateway

The SpectraLink 8000 Telephony Gateway serves as the connecting point, or gateway, between the LAN and the existing telephone system. One or more SpectraLink 8000 Telephony Gateways are typically installed in the telephone equipment room. Each SpectraLink 8000 Telephony Gateway supports up to 16 telephone lines and wireless telephones. Up to 40 SpectraLink 8000 Telephony Gateways can be connected to the LAN to support additional telephone lines. If five or more SpectraLink 8000 Telephony Gateways are connected to the LAN, a SpectraLink 8000 SVP Server must be installed to handle the increased call volume.

Polycom offers digital SpectraLink 8000 Telephony Gateways that work with the digital ports on most common brands of telephone systems (PBX or key systems). We also offer an analog SpectraLink 8000 Telephony Gateway that works with telephone systems (CO, PBX, or Key Systems) with analog (loop start) ports.

Access points

APs are supplied by third party vendors. They 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 SpectraLink 8000 Wireless Telephones are similar to those of

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