Version 7.0 1039 Mediant 3000
User's Manual 58. Configuration Parameters Reference
Parameter Description
Note: The parameter is applicable only if an Extension Coders Group is
assigned to the IP Profile (IP Profile table's parameter,
SBCExtensionCodersGroupID).
SBC RTCP Mode
[SBCRTCPMode]
Global parameter that defines the handling of RTCP packets. You can
also configure this functionality per specific calls, using IP Profiles
(IPProfile_SBCRTCPMode). For a detailed description of the parameter
and for configuring this functionality in the IP Profile table, see
''Configuring IP Profiles'' on page 391.
Note: If this functionality is configured for a specific IP Profile, the
settings of this global parameter is ignored for calls associated with the
IP Profile.
SBC Send Invite To All
Contacts
[SBCSendInviteToAllCont
acts]
Enables call forking of INVITE message received with a Request-URI of
a specific contact registered in the device's database, to all users under
the same AOR as the contact.
 [0] Disable (default) = Sends the INVITE only to the contact of the
received Request-URI.
 [1] Enable
To configure call forking initiated by the device, see ''Initiating SIP Call
Forking'' on page 645.
SBC Shared Line
Registration Mode
[SBCSharedLineRegMode
]
Enables the termination on the device of SIP REGISTER messages from
secondary lines that belong to the Shared Line feature.
 [0] Disable = (Default) Device forwards the REGISTER messages as
is (i.e., not terminated on the device).
 [1] Enable = REGISTER messages of secondary lines are terminated
on the device.
Note: The device always forwards REGISTER messages of the primary
line.
SBC Forking Handling
Mode
[SBCForkingHandlingMod
e]
Defines the handling of SIP 18x responses that are 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.
Gateway Direct Route
Prefix
[GWDirectRoutePrefix]
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 603.
[EnableSBCMediaSync]
Enables synchronization of media between two SIP user agents when a
call is established between them. Media synchronization means that the
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