AudioCodes Mediant 800B User Manual page 1216

Parameter
[SBCExtensionsProvisioningMode]
SBC Direct Media
configure voip > sip-interface > sbc-
direct-media
[SBCDirectMedia]
Transcoding Mode
configure voip > sbc settings >
transcoding-mode
[TranscodingMode]
Preferences Mode
configure voip > sbc settings > sbc-
preferences
[SBCPreferencesMode]
User's Manual
messages.

[1] Enable = Registration method for BroadWorks server. In
a failure scenario with BroadWorks, the device acts as a
backup SIP proxy server, maintaining call continuity
between the enterprise LAN users (subscribers) and
between the subscribers and the PSTN (if provided).
Note: For a detailed description of this feature, see 'Enabling
Auto-Provisioning of Subscriber-Specific Information of
BroadWorks Server for Survivability' on page 724.
Enables the Direct Media feature (i.e., no Media Anchoring) for
all SBC calls, whereby SIP signaling is handled by the device
without handling the RTP/SRTP (media) flow between the user
agents (UA). The RTP packets do not traverse the device.
Instead, the two SIP UAs establish a direct RTP/SRTP flow
between one another. Signaling continues to traverse the
device with minimal intermediation and involvement to enable
certain SBC abilities such as routing

[0] Disable = (Default) All calls traverse the device (i.e., no
direct media).

[1] Enable = Direct media flow between endpoints for all
SBC calls.
Note:

The setting of direct media in the SIP Interfaces table
overrides this global parameter. In other words, even if the
parameter is disabled for direct media (i.e., Media Anchoring
is enabled), if direct media is enabled for a SIP Interface (in
the SIP Interfaces table), calls between endpoints belonging
to the SIP Interface employ direct media.

For more information on No Media Anchoring, see 'Direct
Media' on page 626.
Global parameter that defines the voice transcoding mode
(media negotiation). You can also configure this functionality
per specific calls, using IP Profiles
(IpProfile_TranscodingMode). For a detailed description of the
parameter and for configuring this functionality in the IP Profiles
table, see Configuring IP Profiles on page 405.
Note:

If this functionality is configured for a specific IP Profile, the
settings of this global parameter is ignored for calls
associated with the IP Profile.
Determines the order of the Extension coders (coders added if
there are no common coders between SDP offered coders and
Allowed coders) and Allowed coders (configured in the Allowed
Audio Coders Groups table) in the outgoing SIP message (in
the SDP).

[0] Doesn't Include Extensions = (Default) Extension coders
are added at the end of the coder list.

[1] Include Extensions = Extension coders and Allowed
coders are arranged according to their order of appearance
in the Allowed Audio Coders Groups table.
Note:

The parameter is applicable only if a Coders Group for
1216
Mediant 800B Gateway & E-SBC
Description
Document #: LTRT-10298