Avaya 4600 Series Administrator's Manual page 24

Overview of Voice over IP (VoIP)
TCP/UDP Port Utilization
•
The text associated with either end of the arrows identifies the port (one number) or ports (ranges
given within brackets) supported by the 4600 Series IP Telephones for the specific situation, as
well as any additional qualifications or clarifications. In many cases, the ports used are the ones
called for by IETF or other standards bodies.
•
Many of the explanations in the diagrams refer to system parameters or options settings
(for example, IRSTAT or DIRSRVR) that are explained in
Series IP Telephones
Figure 1: Signaling, Audio and Management Diagram
4600 Series IP Telephone
Port: 49300
Port: [1500–6500]
randomly selected
Port: [4000–10000]
randomly selected;
range may be changed
via Gatekeeper administration;
always an even number
Port: audio port + 1
(only active during a call
if RTCP is enabled)
Port: audio port + 2
(only active during a call
if RTCP monitoring
is enabled)
Port:161
24
in Chapter 4, "Server Administration".
Signaling, Audio and Management
H.323 RAS (UDP/IP)
H.323 Signaling (TCP/IP)
RTP Audio (UDP/IP)
RTCP (UDP/IP)
RTCP (UDP/IP)
SNMP (UDP/IP)
4600 Series IP Telephone Release 2.1 LAN Administrator's Guide
Administering Options for the 4600
H.323 Gatekeeper
Port: 1719
Port: 1720
Media Gateway or
another IP endpoint
Port selected from the audio
port range administered for
the network region
Port: audio port + 1
Voice Monitoring
Manager
Port depends on Voice
Monitoring Manager admin
SNMP MIB Viewer
Port depends on
MIB viewer admin
July 2004