SIP User's Manual 146 Document #: LTRT-68806
Mediant 2000 & TP-1610 & TP-260/UNI
Table 5-24: Digital Gateway Parameters
Parameter Description
ISDN Transfer On Connect
[SendISDNTransferOnConnect]
 [0] Alert = Enable ISDN Transfer if outgoing call is in Alert state
(default).
 [1] Connect = Enable ISDN Transfer only if outgoing call is in
Connect state.
This parameter is used for the ECT/TBCT/RLT ISDN Transfer
methods. Usually, the gateway requests the PBX to connect an
incoming and an outgoing call. This parameter determines if the
outgoing call (from the gateway to the PBX) must be connected
before the transfer is initiated.
Remove CLI when Restricted
[RemoveCLIWhenRestricted]
Determines (for IP to Tel calls) whether the Calling Number IE and
Calling Name IE are removed from the outgoing ISDN Setup
message if the presentation is set to Restricted.
 [0] No = IE aren't removed (default).
 [1] Yes = IE are removed.
Default Cause Mapping From
ISDN to SIP
[DefaultCauseMapISDN2IP]
Defines a single default ISDN Release Cause that is used (in
ISDN to IP calls) instead of all received release causes except
when the following Q.931 cause values are received: Normal Call
Clearing (16), User Busy (17), No User Responding (18) or No
Answer from User (19).
The range is valid Q.931 release causes (0 to 127). The default
value is 0 (indicates that the parameter is not configured - static
mapping is used).
Add Prefix to Redirect Number
[Prefix2RedirectNumber]
Defines a string Prefix that is added to the Redirect number
received from the Tel side. This Prefix is added to the Redirect
Number in the Diversion header.
The valid range is an 8 character string. The default is an empty
string.
Enable Calling Party Category
[EnableCallingPartyCategory]
Determines whether Calling Party Category is relayed between
SIP and PRI.
 [0] Disable = Don't relay the Calling Party Category between
SIP and PRI (default).
 [1] Enable = Calling Party Category is relayed between SIP
and PRI.
If enabled, the Calling Party Category received in the OLI IE of an
incoming SETUP is relayed to the From/P-Asserted-Id headers of
the outgoing INVITE message and vice versa.
For example:
From:<sip:2000;cpc=payphone@10.8.23.70>;tag=1c1806157451
Note: This feature is supported only when using NI-2 PRI variant.
MLPP (Multi-level Precedence & Preemption)
Call Priority Mode
[CallPriorityMode]
Enables Priority Calls handling.
Valid options include:
 [0] Disable = Disable (default).
 [1] MLPP = Priority Calls handling is enabled.
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