AudioCodes Mediant 1000B User Manual page 985

User's Manual
Parameter
Web: SBC Forking Handling Mode
CLI: sbc-forking-handling-mode
[SBCForkingHandlingMode]
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]
Version 6.8
Defines the handling of SIP 18x responses received due to call
forking of an INVITE.

[0] Latch On First = (Default) Only the first 18x is forwarded
to the INVITE-initiating UA. If SIP 18x with SDP is received,
the device opens a voice stream according to the received
SDP and disregards any subsequent 18x forking responses
(with or without SDP). If the first response is 180 without
SDP, the device sends it to the other side.

[1] Sequential = All 18x responses are forwarded, one at a
time (sequentially) to the INVITE-initiating UA. If a 18x
arrives with an offer only, then only the first offer is forwarded
to the INVITE-initiating UA and subsequent 18x responses
are discarded.
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 530.
Enables SBC media synchronization process for calls
established from SIP forking that is initiated by external proxy
servers. It is possible that a call is established with the media
not synchronized between the SBC legs. Media synchronization
resolves this issue.

[0] Disable

[1] Enable (default)
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,
985
51. Configuration Parameters Reference
Description
Mediant 1000B Gateway & SBC