AudioCodes Mediant 3000, Руководство пользователя

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Version 6.6 269 Mediant 3000
User's Manual 18. Coders and Profiles
Parameter Description
in the Allowed Coders Group table.
Note: If the SBCExtensionCodersGroupID parameter of the IP
Profile table is set to None, this parameter is not applicable.
Web: Diversion Mode
[IpProfile_SBCDiversionMode]
Determines the device’s handling of the SIP Diversion header.
For more information on interworking of the History-Info and
Diversion headers, see Interworking SIP Diversion and History-
Info Headers.

[0] Don't Care = (Default) Diversion header is not handled.

[1] Add = History-Info header converted to a Diversion
header.

[2] Remove = Removes the Diversion header and the
conversion to the History-Info header depends on the
settings of the SBCHistoryInfoMode parameter.
Web: History Info Mode
[IpProfile_SBCHistoryInfoMode]
Determines the device’s handling of the History-Info header.
For more information on interworking of the History-Info and
Diversion headers, see Interworking SIP Diversion and History-
Info Headers.

[0] Don't Care = (Default) History-Info header is not handled.

[1] Add = Diversion header converted to a History-Info
header.

[2] Remove = History-Info header removed from the SIP
dialog and the conversion to the Diversion header depends
on the settings of the SBCDiversionMode parameter.
Web: Media Security Behavior
[IpProfile_SBCMediaSecurityBe
haviour]
Determines the transcoding method between SRTP and RTP
and enforce an SBC leg to use SRTP or RTP.

[0] As is = (Default) No special handling for RTP\SRTP is
done.

[1] SRTP = SBC legs negotiate only SRTP media lines, and
RTP media lines are removed from the incoming SDP
offer\answer.

[2] RTP = SBC legs negotiate only RTP media lines, and
SRTP media lines are removed from the incoming
offer\answer.

[3] Both = Each offer\answer is extended (if not already) to
two media lines - one RTP and the other SRTP.
If two SBC legs (after offer\answer negotiation) use different
security types (i.e., one RTP and the other SRTP), the device
performs RTP-SRTP transcoding. To transcode between RTP
and SRTP, the following prerequisites must be met:

At least one supported SDP "crypto" attribute and
parameters

EnableMediaSecurity must be set to 1
If one of the above transcoding prerequisites is not met, then:

any value other than “As is” is discarded.

if the incoming offer is SRTP, force transcoding, coder
transcoding, and DTMF extensions are not applied.