Algo 8410 User Manual page 74

Output Packetization Time (milliseconds)
The size of the audio packets sent by the Transmitter to the Receivers. The default of 20 ms is recommended unless a
different value is specifically required for compatibility with other devices.
Multicast TTL
The multicast time to live (TTL) setting should only be changed if custom routing is configured on the network that
specifically routes multicast packets between subnets and a longer TTL count is required. This ensures packets are not
bounced back and forth in a network identity. When the TTL is reached, the router drops the packet.
Receiver Settings
RTCP Port Selection
Select the port on which RTCP packets will be sent or received. If using the 'Next Higher Port' option, ensure that the
default multicast zone definitions are modified such that zones are only assigned to even-numbered ports, leaving the
next higher odd-numbered ports free for RTCP packets.
Polycom Receiver Tones
Available if Multicast Receiver and 'Polycom Group Page' or 'Polycom Push-to-Talk' are selected in the Basic Settings
→ Multicast tab. A tone may be set for any of the 25 Polycom Groups. If using an Algo device as a Multicast Sender, it
is recommended to set the Receiver tones to 'None' to avoid conflicts, as the Algo devices already multicast a tone by
default.
Basic Zone Definitions
Zones
The 'Expanded' Receiver zones can be enabled/disabled in Basic Settings → Multicast. Default IP addresses and ports
may be revised for any given zone in the table.
Important
Ensure that the Address and Port settings are the same for all Sender and Receiver devices.
Page Tone and Page Volume
Sender Mode: By default, the same tone can be set for all Receiver zones in the Basic Settings → Features tab. Unique
paging tones may be revised for any given zone in the table above.
Receiver Mode: When an Algo device is the multicast Sender, a page tone will play on the Receiver device, so it is
recommended to set the Receiver tone to 'None'. If a page is received from a non-Algo device that doesn't send a
tone, a tone can be inserted on the Receivers (above) each time they detect page audio starting, allowing them to play
a tone.
AL061-UG-GP258410-001-R0
8420 IP Dual-Sided Display Speaker
support@algosolutions.com
8410 IP Display Speaker &
Page 73