Avaya IP Telephony Konfigurationsanleitung Seite 20
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20 Chapter 1 Introduction
P0937663 03.1
Business Communications Manager 2.5
The Business Communications Manager 2.5 is a key building block in creating your network. It
interoperates with many devices, including the Meridian 1 system and H.323 devices. In the
diagram shown in Figure 1 on page 19, the Business Communications Manager 2.5 system is
connected to devices through multiple IP networks, as well as through the PSTN. Multiple
Business Communications Manager 2.5 systems also can be linked together on a network of VoIP
trunks and/or dedicated physical lines. Refer to Chapter 6, “Typical applications,” on page 93.
In the figure on the previous page, note that Business Communications Manager A is connected to
a LAN through a LAN card, to a WAN through a WAN card, and to a PSTN through trunk media
bay modules. Through these networks, the system accesses other systems and network equipment
connected to the network.
M1-ITG
The Meridian 1 Internet Telephony Gateway (M1-ITG) allows Meridian 1 systems to
communicate with H.323-based devices, such as the Business Communications Manager 2.5. In
Figure 1 on page 19, telephones on the M1, such as Meridian telephone A, can initiate and receive
calls with the other telephones on the system across IP networks.
To provide fallback at times when IP traffic cannot pass, you can also connect the Meridian to the
Business Communications Managers through ISDN PRI SL-1 lines, which provide the same
MCDN capability that you can achieve through the VoIP trunks with MCDN active.
Refer to the Business Communications Manager Programming Operations Guide for a description
of MCDN features and networking with PRI SL-1 lines. “Networking with MCDN over VoIP
trunks” on page 93 describes how to provide the same network over VoIP lines.
A Business Communications Manager connected to an M1-ITG using the MCDN protocol can
provide access to a central voice mail and call attendant system, which can streamline multi-office
telephony administration.
Telephones
The Business Communications Manager 2.5 system can communicate using digital telephones
(T7100, M7100, M7100N, T7208, M7208, M7208N, T7316, M7310, M7310N, M7324, and
M7324N), cordless telephones (Companion, DECT, T7406), IP telephones and applications
(i2002, i2004, Nortel Networks i2050 Software Phone), and IP/wireless telephones (NetVision
and NetVision Data telephones). With this much flexibility, the Business Communications
Manager can provide the type of service you require to be most productive in your business.
- Business Communications 1
- Manager 2.5 1
- IP Telephony Configuration 1
- Trademarks 2
- Contents 3
- Chapter 4 4
- Chapter 5 5
- Chapter 6 6
- Appendix A 6
- 12 Tables 12
- Before you begin 13
- Symbols used in this guide 13
- Text conventions 14
- Acronyms 14
- Related publications 15
- How to get help 16
- Chapter 1 17
- Introduction 17
- IP telephones and VoIP trunks 18
- Figure 1 Network diagram 19
- Telephones 20
- IP network 21
- Key IP telephony concepts 22
- Jitter Buffer 23
- QoS routing 23
- Chapter 2 25
- Prerequisites checklist 25
- Network assessment 26
- Resource assessment 27
- Keycodes 27
- Defining published IP address 28
- IP telephones 30
- NetVision wireless telephones 30
- Chapter 3 31
- Installing IP telephones 31
- Choosing a codec 33
- Choosing a Jitter Buffer 34
- Before installing 34
- Using a 3-port switch 35
- NORTEL NETWORKS 36
- Manual Cfg DHCP(0 no, 1 yes) 36
- Field Value Description 37
- Slow connection 40
- One-way or no speech paths 40
- Dropped voice packets 40
- Changing the contrast level 40
- Configuring DHCP 41
- Figure 5 IP Terminal status 42
- Figure 6 Configuration menu 42
- Figure 8 Configuration menu 44
- Download Pending 44
- Customizing feature labels 46
- Moving IP telephones 47
- Keep DN alive 48
- Figure 12 i2050 Switch type 49
- 7 Click on the BCM option 50
- Configuring NetVision records 52
- /symbol.com> 53
- <http:/ 53
- Testing the handset functions 55
- Changing a handset Name 57
- Configuring VoIP trunks 59
- Configuring media parameters 60
- Setting silence compression 61
- Setting jitter buffers 62
- Outgoing call configuration 63
- Figure 18 Trunk/Line data 64
- Configuring a remote gateway 66
- Configuring PSTN fallback 68
- Enabling PSTN fallback 69
- Setting up the VoIP schedule 69
- Configuring routes 70
- Figure 26 VoIP schedule 73
- Activating the VoIP schedule 74
- Turning on QoS monitor 75
- Incoming call configuration 76
- Example configuration 78
- Making calls 82
- Connecting an i200X telephone 83
- Quality of Service Monitor 86
- Port settings 86
- Using firewalls 87
- Using a gatekeeper 88
- The call signaling method 89
- Gatekeeper call scenarios 91
- Typical applications 93
- Setting up the system 95
- Efficient Networking 99
- Network engineering 100
- LAN engineering examples 103
- WAN engineering 104
- Setting Non-linear processing 105
- (8 kb/s) 106
- P0937663 03.1 106
- Traceroute 106
- Enough link capacity 107
- Not enough link capacity 107
- Further network analysis 108
- Reduce link delay 109
- Reducing hop count 109
- Adjust the jitter buffer size 110
- Reduce packet errors 110
- Routing issues 111
- Appendix B 113
- Silence compression 113
- Comfort noise 116
- Appendix C 117
- Network performance utilities 117
- Appendix D 119
- Interoperability 119
- Speech path setup methods 120
- Media path redirection 120
- Gatekeeper 120
- Symbol NetVision telephones 121
- 122 Interoperability 122
- Appendix E 123
- Quality of Service 123
- Measuring Intranet QoS 124
- Recording routes 125
- Adjusting Ping measurements 126
- Measurement procedure 127
- 128 Quality of Service 128
- Traffic mix 129
- TCP traffic behavior 129
- Network Quality of Service 130
- Quality of Service parameters 131
- Fallback to PSTN 132
- Glossary 133
- 134 Glossary 134
- Glossary 135 135
- 136 Glossary 136
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