AudioCodes Mediant 3000, Руководство пользователя

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User's Manual 268 Document #: LTRT-89729
Mediant 3000
Parameter Description
Web: Extension Coders Group ID
[IpProfile_SBCExtensionCoders
GroupID]
Defines the Coder Group ID used for Extended (additional)
coders added to the outgoing leg for this profile. This is used
when transcoding is required between two IP entities (i.e., the
SDP answer from one doesn’t include any coder included in the
offer previously sent by the other). Therefore, to allow IP
entities to communicate with each other regardless of their
capabilities, an Extended coders table with at least one coder
that is supported by each IP entity needs to be assigned to
each IP Group. Therefore, each offer destined to specific IP
Groups includes this coder.
Note: To configure Coders Groups, see Configuring Coder
Groups.
Web: Allowed Coders Group ID
[IpProfile_SBCAllowedCodersG
roupID]
Associates a Coders Group ID for defining the coders that can
be used for this IP entity.
Notes:

For a description of the Allowed Coders feature, see
Restricting Coders.

To configure Allowed Coders Groups, see Configuring
Allowed Coder Groups.
Web: Allowed Coders Mode
[IpProfile_SBCAllowedCodersM
ode]
Determines the mode of the Allowed Coders feature for this IP
Profile.

[0] Restriction = In the incoming SDP offer, the device uses
only coders that are also listed in the Allowed Coders Group;
the rest are removed from the SDP offer (i.e., only coders
common between SDP offered coders and Allowed Coders
Group are used). If an Extension Coders Group is also
selected (using the IP Profile's
SBCExtensionCodersGroupID parameter), these coders are
added to the SDP offer.

[1] Preference = The device re-arranges the priority (order)
of the coders in the incoming SDP offer according to their
order of appearance in the Allowed Coders Group list. This
option also retains all the coders received in the SDP offer.

[2] Restriction and Preference = Performs both Restriction
and Preference.
Notes:

If the AllowedCodersGroup parameter is set to None, this
parameter is not applicable.

To select the Allowed Coders Group ID, use the
AllowedCodersGroup parameter.

To select the Extension Coders Group ID, use the
CodersGroups parameter.

For more information on the Allowed Coders feature, see
Restricting Coders.
Web: SBC Preferences Mode
[SBCPreferencesMode]
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 (defined in the Allowed
Coders Group 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