AudioCodes Mediant 800B User Manual page 1032

Parameter
Web: Gateway Direct Route Prefix
CLI: configure voip/sbc general-
setting/gw-direct-route-prefix
[GWDirectRoutePrefix]
CLI: sbc-media-sync
[EnableSBCMediaSync]
Web/EMS: SBC Fax Detection
Timeout
CLI: configure voip/sbc general-
setting/sbc-fax-detection-timeout
[SBCFaxDetectionTimeout]
Admission Control Table
Web: Admission Control
EMS: Call Admission Control
CLI: configure voip > sbc sbc-
admission-control
[SBCAdmissionControl]
User's Manual
Defines the prefix destination Request-URI user part that is
appended to the original user part for alternative IP-to-IP call
routing from SBC to Gateway (Tel) interfaces.
The valid value is a string of up to 16 characters. The default is
"acgateway-<original prefix destination number>". For example,
"acgateway-200".
For more information, see Configuring SBC IP-to-IP Routing
Rules on page 571.
Enables synchronization of media between two SIP user
agents when a call is established between them. Media
synchronization means that the media is properly negotiated
(SDP offer/answer) between the user agents. In some
scenarios, the call is established despite the media not being
synchronized. This may occur, for example, in call transfer (SIP
REFER) where the media between the transfer target and
transferee are not synchronized. The deviceperforms media
synchronization by sending a re-INVITE immediately after the
call is established in order for the user agents to negotiate the
media (SDP offer/answer).

[0] Disable = (Default) Media synchronization is performed
only if the RTP mode (e.g., a=sendrecv, a=sendrecv,
a=sendonly, a=recvonly, and a=inactive) between the user
agents are different and synchronization is required.

[1] Enable = Media synchronization is performed if the
media, including RTP mode or any other media such as
coders, is different and has not been negotiated between
the user agents.

[2] Never = Media synchronization is never performed.
Defines the duration (in seconds) for which the device attempts
to detect fax (CNG tone) immediately upon the establishment
of a voice session. The interval starts from the establishment of
the voice call.
The valid value is 1 to any integer. The default is 10.
The feature applies to faxes that are sent immediately after the
voice channel is established (i.e., after 200 OK).
You can configure the handling of fax negotiation by the device
for specific calls, using IP Profiles configured in the IP Profile
table (see the
IpProfile_SBCRemoteRenegotiateOnFaxDetection parameter
in Configuring IP Profiles).
This table parameter defines Call Admission Control (CAC)
rules for limiting the number of allowed concurrent calls (SIP
dialogs).
The format of the ini file table parameter is as follows:
[SBCAdmissionControl]
FORMAT SBCAdmissionControl_Index =
SBCAdmissionControl_AdmissionControlName,
SBCAdmissionControl_LimitType,
SBCAdmissionControl_IPGroupID,
SBCAdmissionControl_SRDID,
SBCAdmissionControl_RequestType,
1032
Mediant 800B Gateway and E-SBC
Description
Document #: LTRT-10620