AVer H300 user manual - Manual (Page 44)

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3. H300/H100 support firewall traversal of H.323 calls.
Select the following to setup the Firewall.
 TCP/UDP ports: By default, the system
communicates through TCP/UDP ports in the range
from 30000 to 30039. You can specify the range for
your network environment.
Note: You must configure your firewall to allow inbound/outbound traffic through TCP port
1720/1719 for H.323 call set up
 Enable H.460 Firewall Traversal: The gatekeeper must support this feature and register
to dedicate gatekeeper for the system.
 NAT Configuration: H300/H100 supports NAT system that use internal IP address to
communicate with other devices outside the LAN.
 NAT Public (WAN) Address: The NAT public address must be entered when you enable
the feature on NAT configuration.
To Enable/Disable Quality of Service
Quality of Service (QoS) provides different priority data
flows or to guarantee a certain level of performance in
video conferencing data flow.
To activate QoS, select Setting in the home menu >
System Settings > Network > Enable QoS and press
to active/deactivate the feature.
Video /Audio
In Video Audio setting, you can enable/disable keypad tone, set the MIC gain level, select the
preferred video and audio codec.