Polycom 6000 - Manual (Page 25)

Networks
2 - 13
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:
1. Go to System > Admin Settings > Network > Call Preference.
2. Configure these settings on the Call Preference screen:
3. Select and configure these settings on the Network Dialing screen:
Setting Description
Basic Mode 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.
Basic Mode disables many system features such as
content sharing, far end camera control, and
advanced audio and video algorithms. Use Basic
Mode only when calling systems that fail to operate
properly with these advanced features.
IP H.323 Allows the system to make IP calls.
SIP Allows the system to use SIP when connecting IP
calls.
H.264 Specifies that the system should use H.264 for video.
H.239 Specifies standards-based People+Content data
collaboration. Enable 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.
H.264 Content 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.
ISDN Gateway Allows users to place IP-to-ISDN calls through a
gateway.