A1 VoIP Requirements
48
Getting Started
To limit the number of VoIP channels:
•
Set the status of the ports you wish to disable (starting from the highest-numbered port) to
OUS
.
For example, if you wish to use only 10 of the available 16 VoIP channels (i.e., disable 6
channels), set the ports 8, 7, and 6 to
OUS
as shown below:
In this case, the equation for bandwidth calculation, based on the previous example, will be changed
as follows:
A1.2
Network Configuration
You must evaluate the structure of the existing network to see if a VoIP network can be implemented.
Below are the points that should be taken into your evaluation.
Is it possible to have static IP addressing?
Because the maintenance of the VoIP Gateway Card is carried out from a personal computer (PC)
through an IP network, the card must be assigned a static IP address.
Static IP addressing must be made possible even when the DHCP feature is used. For more details,
refer to "2.2.1 Network Parameters" in the VoIP Gateway Card Programming Guide.
Required Bandwidth
= (No. of Fax Machines × Required Bandwidth for the G.711 CODEC) +
[(
10
- No. of Fax Machines) × Required Bandwidth for Voice Communication]
= (2 × 87.2) + [(
10
- 2) × 31.2]
= 424 (kbps)
Summary of Contents for KX-TDA0490
Page 4: ...4 Getting Started ...
Page 20: ...2 2 Cable Connection 20 Getting Started ...
Page 45: ...Getting Started 45 Appendix A Guidance for VoIP Installation ...
Page 55: ...Getting Started 55 Appendix B Alternative Numbering Plan Example ...
Page 63: ...Getting Started 63 Appendix C Initialisation of the VoIP Gateway Card ...
Page 66: ...C1 Initialising the VoIP Gateway Card 66 Getting Started ...
Page 67: ...Getting Started 67 Appendix D Using the KX TDA0490 and KX TDA0480 in One Network ...
Page 69: ...D1 Considerations in Installation Getting Started 69 ...
Page 76: ...1 1 Starting the IP GW16 Maintenance Utility 6 Programming Guide ...
Page 126: ...2 5 Others 56 Programming Guide ...
Page 139: ...Programming Guide 69 Index ...