Altigen AltiContact Manager Version 4.6, Administration Manual

Page: 238 / 576

Network Configuration Guidelines for VoIP
9-8 AltiContact Manager Administration Manual
To set ranges and values for dynamic IP addressing when only using
a 30-Port IP Board:
1. In the G711 IP Ranges list, click the Add button. The Add IP Codec
Setting dialog appears.
Figure 4. Add IP Codec Setting
2. In the Add IP Codec Setting dialog, specify Range to set a range of
dynamic IP address.
3. Enter the Start value as 0.0.0.1; for the End value, enter
255.255.255.254.
You cannot use the minimum and maximum values (0.0.0.0. and
255.255.255.255).
4. Click OK.
5. From the main menu, go to the VoIP Codec Configuration window
and change the codec setting of current selection of all servers and
codecs to G.711 uLaw, then click OK. (By default, server codec is set
to G.723.1.)
This will force all connections to be G.711 and allow remote users
access to a range of IP addresses, instead of the users having to contact
the administrator for the specific IP address.
Network Configuration Guidelines for VoIP
Real-time applications such as voice communications require a networking
environment that meets certain requirements to deliver and maintain good
voice quality. The following network configuration guidelines are highly
recommended when using AltiWare’s VoIP features. ISP/Intranet Quality
of Service (QoS)
• If you subscribe to the public IP network or use your own Intranet,
make sure the maximum network delay is less than 150 milliseconds.
• Also, the typical packet loss rate should be less than 5 percent.