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Suggestions for Installation and Configuration
Issue 2.2 April 2005 31
Suggestions for Installation and Configuration
Reliability and Performance
There is a cost/performance trade-off associated with Voice over IP. Greater reliability and
improved performance can be obtained through server redundancy and components with
higher bandwidth capabilities.
The reliability and performance of the traditional PBX systems are very high to date. Much of
the LAN is outside the PBX’s control. However, consider the points in the next paragraph to
enhance the reliability and performance of the IP telephone network.
All 4600 Series IP Telephones support the tools “ping” and “traceroute.” These are standard
LAN/WAN tools to identify:
● whether two points on a network can communicate with each other, and
● what path a sample communication takes as it traverses the network from one point to the
other.
All 4600 Series IP Telephones respond appropriately to a ping or a traceroute message sent
from the DEFINITY
®
or MultiVantage™ switch or any other source on your network. These
telephones will not, in general, initiate a ping or traceroute. Release 1.6 of the 4600 Series IP
Telephones introduced “remote ping” and “remote traceroute” support. The switch can instruct
such a 4600 Series IP Telephone to initiate a ping or a traceroute to a specified IP Address. The
telephone carries out that instruction and sends a message to the switch indicating the results.
See your DEFINITY
®
or MultiVantage™ Administration documentation for more details.
As of Release 1.8, if applicable, 4600 Series IP Telephones test whether the network Ethernet
switch port supports IEEE 802.1D/q tagged frames by ARPing the router with a tagged frame.
See VLAN Considerations
on page 79. If your LAN environment includes Virtual LANs (VLANs),
your router must respond to ARPs for VLAN tagging to work properly.
4600 Series IP Telephone
Port: 5000
(only active if
IRSTAT is 1)
Applications, continued
Another 4600 Series
IP Telephone
Port: 5000
IrOBEX (UDP/IP)
(4606, 4612, 4620, 4620SW,
4624,
4630, and 4630SW only)