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84 Chapter 5 Configuring VoIP trunks

P0937663 03.1

Remote access over VoIP trunks

You cannot program DISA or auto-answer for voice over IP (VoIP) trunks, therefore, your system

cannot be accessed from an external location over a VoIP trunk.

Configuring NetMeeting clients

NetMeeting is an application available from Microsoft which uses the H.323 protocol.

To use NetMeeting:

1 Install NetMeeting on the client computer.

2 In the Tools menu, click Options. The options dialog appears.

Figure 30 NetMeeting options

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 145 146

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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