Ambient Noise Compensation No Loss
Configure the Ambient Noise Compensation algorithm to only use levels at or above the current volume. The current
volume is the minimum volume when this setting is enabled.
Ambient Noise Compensation Max Volume
Based on ambient noise levels, a maximum volume can be set.
Automatic Gain Control (AGC)
AGC normalizes the audio level. This ensures the audio level heard near the speaker is always at a consistent level,
independent of the phone that is used to call.
‘Line Out’ Analog Output Level
The following output levels are available, allowing the 8301 to interface with a wide variety of amplifiers:
• +4dBu 10k (1.23 Vrms)
• 0dBu 10k (0.775 Vrms)
• 0dBV 10k (1.0 Vrms)
• -10dBV 10k (0.316 Vrms)
• 0dBm 600 ohm (0.755 Vrms)
• -10dBm 600 ohm (0.245 Vrms)
• -20dBm 600 ohm (0.077 Vrms)
6.2.3 Multicast
Multicast IP Addresses
Each 8301 has its own IP address and shares a common multicast IP and port number (multicast zone) for multicast
packets. The Sender transmits to a configurable multicast zone, and the Receiver units listen to all the multicast zones
assigned to them.
The network switches and router see the packet and deliver it to all the members of the group. The multicast IP and
port number must be the same on all the Transmitter and Receiver units of one group. The user may define multiple
zones by picking different multicast IP addresses and/or port numbers.
1. Multicast IP addresses range: 224.0.0.0/4 (from 224.0.0.0 to 239.255.255.255)
2. Port numbers range: 1 to 65535
3. By default, the 8301 is set to use the multicast IP address 224.0.2.60 and the port numbers 50000-50008
Make sure that the multicast IP address and port number do not conflict with other services and devices on the same
network.
Multicast Page Zones
The 8301 supports nine (9) ‘basic’ multicast zones. These zones are defined by the multicast IP addresses.
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