Configuring Call Preferences - Polycom QDX 6000 Administrator's Manual

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To enable firewall traversal on a Polycom QDX 6000 system:
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Configuring Call Preferences

Call preferences help you manage the network bandwidth used for calls. You
can specify the default and optional call settings for outgoing calls. You can
also limit the call speeds of incoming calls.
To choose call preferences:
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Setting
Basic Mode
H.264
H.239
H.264 Content
Enable firewall traversal on the Polycom QDX 6000 system.
Register the Polycom QDX 6000 system to an external V2IU Traversal
Server Gateway that supports the H.460.18 and H.460.19 standards.
Make sure that firewalls being traversed allow Polycom QDX 6000
systems behind them to open outbound TCP and UDP connections.
Disable H.323-aware features on the firewall.
― Firewalls with a stricter rule set should allow Polycom QDX 6000
systems to open at least the following outbound TCP and UDP ports:
1720 (TCP), 14085-15084 (TCP) and 1719(UDP), 16386-25386 (UDP).
― Firewalls should permit inbound traffic to TCP and UDP ports that
have been opened earlier in the outbound direction.
Go to System > Admin Settings > Network > IP > Firewall.
Select Enable H.460 Firewall Traversal.
Go to System > Admin Settings > Network > Call Preference.
Configure these settings on the Call Preference screen:
Description
Enables a limited operating mode that uses H.261 for video
and G.711 for audio. This mode provides administrators with a
workaround for interoperability issues that cannot be solved
using other methods.
The Basic Mode setting stays in effect until you change it.
Specifies that the system should use H.264 for video.
Specifies standards-based People+Content data collaboration.
Select this option if you know that H.239 is supported by the far
sites you will call. If callers experience issues when sharing
content with other Polycom systems, disable this setting.
If this option is enabled, the endpoint will use H.264 protocol
firstly when it is sending content. Some endpoints have the
content which is not compatible with H.264, enabling this option
may disable the content feature. In this case, it is
recommended to disable this option.
Administrator's Guide for Polycom QDX 6000 Systems
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