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Multicast Address Setup Window
RX Mcast Address Field
The RX Mcast Address field is used to enter the broadcast address for all audio traffic received on a specific line. All consoles
must have the same Multicast Address. The entry in the first Multicast Address field applies to the port number entered in the
RX Port field.
NOTE:
• The option to use a different Multicast Address for the RX port is available. This provides flexibility and acts as
a filter.
• Phone operation requires unique RX and TX ports.
• If you want all consoles to monitor RX and TX audio on a specific line, you must have their base Multicast
Address, RX and TX ports set the same.
The range for this field is 224.0.0.2 to 239.255.255.255.
RX Port Field
The RX Port field identifies the RX port number for each line. The port number must be unique, per line, and must be greater
than or equal to 1054.
EXAMPLE: Based on the entries shown in Figure 25, any console attempting to transmit to line 1 must have a
Multicast Address of 225.8.11.81 and an RX port number of 2054 to monitor RX audio and a TX port
number of 4072 to monitor TX audio.
TX Mcast Address Field
TX Mcast Address field identifies the broadcast address for all audio traffic transmitted on a specific line. All consoles must
have the same Multicast Address. The entry in the second Multicast Address field applies to the port number entered in the TX
Port field.
The range for this field is 224.0.0.2 to 239.255.255.255.
NOTE:
• IP-223s can also operate Unicast (point-to-point). These fields can support class A, B, and C addresses.
• Make sure the RX and TX port numbers are unique.
TX Port Field
The TX Port field identifies the TX port number for each line. The port number must be unique, per line, and must be greater
than or equal to 1054.
EXAMPLE: Based on the entries shown in Figure 25, any console attempting to transmit to line 1 must have a
Multicast Address of 225.8.11.81 and an RX port number of 2054 to monitor RX audio and a TX port
number of 4072 to monitor TX audio.
TX Group Port Field
The TX Group Port field is used to transmit to multiple IP-223s based on a unique port number.