AudioCodes Mediant 4000 SBC User Manual page 426

Parameter
Allowed Video Coders
allowed-video-coders-group-
name
[IpProfile_SBCAllowedVideo
CodersGroupName]
Allowed Media Types
sbc-allowed-media-types
[IpProfile_SBCAllowedMedia
Types]
Direct Media Tag
sbc-dm-tag
[IPProfile_SBCDirectMediaT
ag]
RFC 2833 Mode
sbc-rfc2833-behavior
[IpProfile_SBCRFC2833Beh
avior]
User's Manual
Preference.
Note:

The parameter is applicable only if Allowed coders are assigned to
the IP Profile (see the 'Allowed Audio Coders' or 'Allowed Video
Coders' parameters).

For more information on the Allowed Coders feature, see
Restricting Coders on page 464.
Assigns an Allowed Video Coders Group. This defines permitted video
coders when forwarding video streams to the SIP entity associated
with the IP Profile. The video coders are listed in the "video" media
type in the SDP (i.e., 'm=video' line). For this SIP entity, the device
uses only video coders that appear in both the SDP offer and the
Allowed Video Coders Group.
By default, no Allowed Video Coders Group is assigned (i.e., all video
coders are allowed).
To configure Allowed Video Coders Groups, see Configuring Allowed
Video Coder Groups on page 417.
Defines media types permitted for the SIP entity associated with the IP
Profile. The media type appears in the SDP 'm=' line (e.g., 'm=audio').
The device permits only media types that appear in both the SDP offer
and this configured list. If no common media types exist between the
SDP offer and this list, the device drops the call.
The valid value is a string of up to 64 characters. To configure multiple
media types, separate the strings with a comma, e.g., " audio, text"
(without quotes). By default, no media types are configured (i.e., all
media types are permitted).
Defines an identification tag for enabling direct media (no Media
Anchoring) for the SIP entity associated with the IP Profile. Direct
media occurs between all endpoints whose IP Profiles have the same
tag value (non-empty value). For example, if you set the parameter to
"direct-rtp" for two IP Profiles "IP-PBX-1" and "IP-PBX-2", the device
employs direct media for calls amongst endpoints associated with IP
Profile "IP-PBX-1", for calls amongst endpoints associated with IP
Profile "IP-PBX-2", and for calls between endpoints associated with IP
Profile "IP-PBX-1" and IP Profile "IP-PBX-2".
The valid value is a string of up to 16 characters. By default, no value
is defined.
For more information on direct media, see Direct Media on page 462.
Note: If you enable direct media for the IP Profile, make sure that your
Media Realm provides sufficient ports, as media may traverse the
device for mid-call services (e.g., call transfer).
Defines the handling of RFC 2833 SDP offer-answer negotiation for
the SIP entity associated with the IP Profile.

[0] As is = (Default) The device does not intervene in the RFC 2833
negotiation.

[1] Extend = Each outgoing offer-answer includes RFC 2833 in the
offered SDP. The device adds RFC 2833 only if the incoming offer
does not include RFC 2833.

[2] Disallow = The device removes RFC 2833 from the incoming
offer.
Note: If the device interworks between different DTMF methods and
426
Mediant 4000 SBC
Description
Document #: LTRT-40203