Tcp/Udp Port Utilization - Avaya 1600 Series Administrator's Manual

This capability also has the advantage of making station number portability easier. Assume a situation
where the company has multiple locations in London and New York, all sharing a corporate IP network.
Users want to take their deskphones from their offices in London and bring them to New York. When
users start up their deskphones in the new location, the local DHCP server usually routes them to the
local call server. With proper administration of the local DHCP server, the deskphone knows to try a
second call server IP address, this one in London. The user can then be automatically registered with
the London call server.
Chapter 5: Server Administration
alternate media servers, router/gateways, and HTTP/HTTPS servers. For more information, see
Addressing on page 75.

TCP/UDP Port Utilization

The 1600 Series IP Deskphones use a variety of protocols, particularly TCP and UDP, to communicate
with other equipment in the network. Part of this communication identifies which TCP or UDP ports
each piece of equipment uses to support each protocol and each task within the protocol. For additional
TCP/UDP port utilization information as it applies to Avaya Aura Communication Manager, see
Port Selection on page 28.
Depending on your network, you might need to know what ports or ranges are used in the operation of
1600 Series IP Deskphones. Knowing these ports or ranges helps you administer your networking
infrastructure.
In Figure 1 and Figure
The box on the left always represents the 1600 Series IP Deskphone.
●
Depending on the diagram, the boxes on the right refer to various pieces of network equipment
●
with which the deskphone can communicate.
Open-headed arrows (for example,
●
Closed-headed arrows (for example,
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of data transfer.
The text the arrows point to identifies the port or ports that the 1600 Series IP Deskphones
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support for the specific situation. Brackets identify ranges when more than one port applies. The
text indicates any additional qualifications or clarifications. In many cases, the ports used are the
ones called for by IETF or other standards bodies.
contains details on administration of DHCP servers for lists of
2:
) represent the direction(s) of socket initialization.
Other Network Considerations
UDP
) represent the direction(s)
Issue 6 August 2014
DNS
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