Avaya EE IP Telephony Manuel d'utilisateur

© 1999 Nortel NetworksPO908509 Issue 01Enterprise Edge IP TelephonyConfiguration Manual

10 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Figure 1 Enterprise Edge and M1 networking overviewNote: The quality o

Overview 11PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualService/Routing Service Route 001Use Pool AExternal # (leave blank)DN t

12 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01In this example, outgoing public network calls dialed from a Enterprise

Overview 13PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualPrivate network calls are made by dialing a 4-digit private network DN.

14 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Calls to Ottawa office:Services/Routing Service Route 001Use Pool AExte

Overview 15PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualOttawa office:Trunk/Line Data Line 241 Target lineReceived # 6221Line A

16 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01The implications on the configuration on each node are:• each node must

Overview 17PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualThis model serves as an effective traffic shaping mechanism by invoking

18 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Packet lossPacket loss is the percentage of packets that do not arrive

Overview 19PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualPingPing (Packet InterNet Groper) sends an ICMP (Internet Control Messa

20 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01The supported codec types are configured in the Local gateway configura

Overview 21PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualEnterprise Edge Solutions recommends the following order for codec sele

22 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Silence compressionSilence compression is supported on G.723.1 and G.72

Overview 23PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualEcho cancellationWhen a two-wire telephone cable connects to a four-wir

24 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01If the caller is near the PBX or CO switch, the echo comes back so quic

Overview 25PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualThe jitter buffer hold time adds to the overall delay, so if the networ

26 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01• In order for the gateways to revert to a G.711 clear channel, the ter

PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualEngineering guidelines The engineering guidelines address the design of an IP trunk

28 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01OverviewTraditional networks rely on voice services such

Engineering guidelines 29PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualFigure 3 IP Telephony network engineering processEnterpri

Contents 3P0908532 Issue 01 Enteprise Edge Unified Messaging Client Installation GuideContentsChapter 1 Overview 7About this document 8System Functio

30 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01overhead)The tables on page 33 and page 34 show the bandw

Engineering guidelines 31PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualFigure 4 Multiple network interfacesWhen a caller at DN-A

32 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Method 2In cases where the LAN is not routable, a WAN IP

Engineering guidelines 33PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualTable 1 LAN and WAN IP bandwidth usage per Enterprise Edg

34 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Table 2 LAN and WAN IP bandwidth usage per Enterprise Edg

Engineering guidelines 35PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualWAN engineeringTraffic to Wide Area Network (WAN) is obta

36 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Link utilizationThe starting point of this assessment is

Engineering guidelines 37PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualFrom the Enterprise Edge VoIP Gateway bandwidth engineeri

38 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Some network management systems have network planning mod

Engineering guidelines 39PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualSetting QoSThe users of corporate voice and data services

4 ContentsEnteprise Edge Unified Messaging Client Installation Guide P0908532 Issue 01Measurement procedure 43Other measurement considerations 43Furt

40 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01These settings indicate the quality of voice service. IP

Engineering guidelines 41PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualThe size of the ping probe packets should be set to 60 by

42 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01The traceroute program can also be used to verify whether

Engineering guidelines 43PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualLate packetsPackets that arrive outside of the window all

44 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01If the intranet capacity is tight and the IP telephony tr

Engineering guidelines 45PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualPropagation delayPropagation delay is affected by the mil

46 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01• Upgrading link capacity. This reduces the serialization

Engineering guidelines 47PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualOther cause of packet errors not related to delay are as

48 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01When an intranet takes on a real-time service, the users

Engineering guidelines 49PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualTCP traffic behaviorThe majority of corporate intranet tr

Contents 5P0908532 Issue 01 Enteprise Edge Unified Messaging Client Installation GuideChapter 7 Interoperability 83interoperability considerations 83

50 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01If the installer or administrator wishes to deploy a mixe

Engineering guidelines 51PO908509 Issue 01 Enterprise Edge IP Telephony Configuration Manual• G.711The G.729 codec provides the best balance of quali

52 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01The voice jitter buffer directly affects the end-to-end d

Engineering guidelines 53PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualSet the Tx and Rx thresholds (MOS numbers) for the remote

54 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01In subsequent design cycles, the QoS objective can be rev

Engineering guidelines 55PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualThe fallback threshold algorithm assumes a fixed IP telep

56 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Note: The quality of the IP trunk connection is assessed

Engineering guidelines 57PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualExternal # (leave blank)DN type PrivateDestination Code 4

58 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01In this example, outgoing public network calls dialed fro

Engineering guidelines 59PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualNote: Enterprise Edge IP telephony requires a keycode. Af

6 ContentsEnteprise Edge Unified Messaging Client Installation Guide P0908532 Issue 01

60 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01DN type PrivateServices/Routing Service Route 002Use Pool

Engineering guidelines 61PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualLine Access Set 6221 L241:Ring onlyLine pool access Line

62 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01The implications on the configuration on each node are:•

Engineering guidelines 63PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualIP trunks are a point-to-multipoint facility, unlike anal

64 Engineering guidelinesEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01

PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualEngineering checklistHow do you determine if you have enough available bandwidth on

66 Engineering checklistEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01

PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualInstallation Enterprise Edge IP Telephony requires the following hardware and softw

68 InstallationEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Figure 7 Configuring the local gateway installation roadmapAdding a

Installation 69PO908509 Issue 01 Enterprise Edge IP Telephony Configuration Manual• Configure IP address for remote gateway and dialed digits needed

PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualOverviewThe Enterprise Edge VoIP Gateway reduces customers’ communication costs by

70 InstallationEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Figure 8 Configuring the remote gateway installation roadmapFallbac

Installation 71PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualIP trunks on the core telephony services use the concept of routes

72 InstallationEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01

PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualConfigurationEnterprise Edge VoIP Gateway uses a menu-driven interface for operatio

74 ConfigurationEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01User Interface OverviewUse the following steps to modify an entry.

Configuration 75PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualFigure 13 Sample dialog box5. A dialog box opens6. Perform the ope

76 ConfigurationEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01The codec type used on a per IP telephony call basis is determined

Configuration 77PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualThe Supported Codecs field indicates the supported codecs. A pull-

78 ConfigurationEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01The Modify Entry option allows the administrator to change the ord

Configuration 79PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualModifying the Remote Gateway Configuration tableThe pull-down menu

8 OverviewEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01About this documentThis guide provides information on the Enterprise Edg

80 ConfigurationEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01For private networking, the call terminates at a terminal at the d

PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualMaintenanceQuality of Service MonitorThe Quality of Service Monitor is software whi

82 MaintenanceEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01

PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualInteroperabilityEnterprise Edge IP Telephony is compatible with the ITU-T H.323v2 s

84 InteroperabilityEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01Asymmetrical media channel negotiationBy default, the Enterpris

PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualGlossaryBackbone A network’s major transmission path, handling high-volume, high-de

86 GlossaryEnterprise Edge IP Telephony Configuration Manual PO908509 Issue 01ITU International Telecommunications Unionkbit/s kilobits per second. T

Enterprise Edge IP Telephony Configuration Manual Enterprise Edge Voice MessagingIndex 87IndexAalarms 81Cchanges to the intranet 47Codecs 19Core tele

88 IndexEnterprise Edge Voice Messaging Enterprise Edge IP Telephony Configuration Manual

Overview 9PO908509 Issue 01 Enterprise Edge IP Telephony Configuration ManualThe IP telephony gateway allows communication with other supported gatew