Avaya BCM 2.5 IP Telephony Guía de configuración Pagina 37
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Chapter 3 Installing IP Telephones 37
IP Telephony Configuration Guide
• Registration Disabled--The Registration on the Business Communications Manager is set to
OFF.
Use the following strategies for troubleshooting an IP telephone:
• If an IP telephone does not boot, use VNC to access the Business Communications Manager.
Find this file:
E:\NORTEL NETWORKS\Logs\Nnu\UTPS.log.
If the telephone is properly configured to reach the Business Communications Manager, you
should see this message in the log: "Opening signaling channel for set index X [at A.B.C.D]"
where A.B.C.D is the telephone's IP address.
If this entry is not present, the IP telephone is not connected to the Business Communications
Manager. Double check the telephone configuration parameters. VNC into the Business
Communications Manager, open a DOS window and try pinging the telephone. Check the
configuration settings of any NAT server, DHCP server, firewall and routers between the telephone
and the Business Communications Manager. For information on using Ping, see Appendix C,
“Network Performance Utilities,” on page 109.
• While signaling between the IP telephones and the Business Communications Manager uses
Business Communications Manager port 7000, voice packets are exchanged using the default
RTP ports 28000 through 28255 at the Business Communications Manager, and ports 51000
through 51200 at the IP telephones. If these ports are blocked by the firewall or NAT, you will
experience one-way or no-way speech paths.
• If the LAN traffic in your network environment is heavy, you may experience dropped voice
packets. If this occurs, connect the Business Communications Manager and the telephones to a
local network hub to avoid the network traffic.
• If an IP telephone does not display the text "Connecting to server" within two minutes after
power up, the telephone was unable to establish communications with the Business
Communications Manager. Double check the telephone's IP configuration, and IP
connectivity to the Business Communications Manager (cables, hubs, etc.).
• When an IP telephone is connected for the first time, the contrast level is set to the default
setting of 1. Most users find this value is too low. Therefore, after the telephone is operational,
you can increase the contrast level by pressing Feature *7 at the telephone.
• If the connection between the IP client and the Business Communications Manager is slow
(ISDN, dialup modem), change the preferred CODEC for the telephone from G.711 to G.729.
(See “Settings for IP telephones” on page 35.)
Note: To see the configuration information of a telephone connected to the
Business Communications Manager:
When the telephone is not on a call, press the EXPAND key (blue key at the
bottom-right of the telephone) followed by the SERVICES key (key with image of
a globe).
To see the Codec data for a telephone while it is on a call:
Press the EXPAND key (blue key at the bottom-right of the telephone) followed
by the SERVICES key (key with image of a globe).
- Business Communications 1
- Manager 2.5 1
- IP Telephony Configuration 1
- Trademarks 2
- Contents 3
- Chapter 4 4
- Chapter 5 5
- Appendix A 5
- Before you begin 13
- Symbols used in this guide 14
- Text conventions 14
- Acronyms 15
- UDP User Datagram Protocol 16
- WAN Wide Area Network 16
- Related publications 17
- How to get help 18
- Chapter 1 19
- Introduction 19
- The IP telephony network 20
- Chapter 1 Introduction 21 21
- Figure 1 Network diagram 21
- Telephones 22
- IP Network 22
- Key IP Telephony Concepts 23
- Jitter Buffer 24
- QoS routing 24
- Chapter 1 Introduction 25 25
- 26 Chapter 1 Introduction 26
- Chapter 2 27
- Prerequisites checklist 27
- Network assessment 28
- Resource Assessment 28
- Keycodes 29
- IP Telephones 30
- Chapter 3 31
- Installing IP Telephones 31
- Choosing a codec 33
- Choosing a Jitter Buffer 33
- Before Installing 34
- Manual Cfg DHCP(0 no, 1 yes) 35
- Configuring DHCP 38
- Figure 4 DHCP summary 39
- Figure 5 DHCP range 40
- Figure 6 IP Terminal status 41
- Figure 7 Configuration menu 42
- Figure 9 IP Terminal Status 43
- Download Pending 44
- Deregistering offline DNs 45
- Moving IP telephones 46
- H.323 devices 47
- 4 Click the Save button 49
- VoIP Trunk Configuration 51
- Configuring media parameters 53
- Configuring codecs 54
- Setting Silence Compression 54
- Setting Jitter Buffers 55
- Outgoing call configuration 56
- Figure 21 Trunk/Line data 57
- Figure 22 Line pool 58
- Configuring a remote gateway 59
- Configuring PSTN fallback 60
- Setting up a VoIP schedule 61
- Vo I P 62
- Configuring routes 63
- Figure 28 Route list 64
- Figure 29 Add route dialog 64
- Creating a destination code 65
- Figure 32 Normal schedule 66
- Configuring digits 67
- Activating the VoIP schedule 67
- Turning on QoS monitor 68
- Incoming call configuration 70
- Example configuration 71
- Making calls 74
- Connecting an i200X telephone 75
- Quality of Service Monitor 77
- Port settings 77
- Using firewalls 78
- Using a gatekeeper 80
- Gatekeeper call scenarios 82
- Typical applications 85
- MCDN functionality 86
- Networking 91
- Network Engineering 92
- Networking 93 93
- (64 kb/s) 93
- (5.3 kb/s) 93
- LAN Engineering Examples 95
- WAN engineering 96
- Setting Non-linear processing 96
- Networking 97 97
- Traceroute 97
- Enough link capacity 98
- Not enough link capacity 98
- Implementing the network 99
- Further network analysis 99
- Reduce link delay 100
- Reducing hop count 100
- Adjust the jitter buffer size 101
- Reduce packet errors 101
- Routing issues 102
- Silence compression 103
- Appendix B 103
- 104 Silence compression 104
- P0937663 02.0 104
- Silence compression 105 105
- 106 Silence compression 106
- Silence compression 107 107
- Comfort Noise 108
- Appendix C 109
- Network Performance Utilities 109
- Appendix D 111
- Interoperability 111
- Speech Path Setup Methods 112
- Media Path Redirection 112
- Gatekeeper 113
- Symbol Telephones 114
- Appendix E 115
- Quality of Service 115
- Measuring Intranet QoS 116
- Recording routes 117
- Adjustment for processing 118
- Late packets 118
- Quality of Service 119 119
- Traffic mix 120
- Network Quality of Service 121
- Packet loss 122
- Packet delay 122
- Delay variation (jitter) 123
- 124 Quality of Service 124
- Glossary 125
- 126 Glossary 126
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