Polycom RMX 1500 Administrator's Manual page 462

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Table 14-8 Default IP Service – Conferencing – QoS Parameters
Field
TOS
Description
Select the type of Service (TOS) that defines
optimization tagging for routing the conferences
audio and video packets.
•
Delay: The recommended default for video
conferencing; prioritized audio and video
packets tagged with this definition are delivered
with minimal delay (the throughput of IP packets
minimizes the queue sequence and the delay
between packets).
• None: No optimization definition is applied. This
is a compatibility mode in which routing is based
on Precedence priority settings only. Select
None if you do not know which standard your
router supports.
Chapter 14-Network Services