CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
'Precedence Ringing Type'
precedence-ringing
[PrecedenceRingingType]
Defines the index of the Precedence Ringing tone in
the Call Progress Tones (CPT) file. This tone is used
when the parameter CallPriorityMode is set to 1 and a
Precedence call is received from the IP side.
The valid range is -1 to 16. The default is -1 (i.e., plays
standard ringing tone).
Note: The parameter is applicable only to analog
interfaces.
e911-mlpp-bhvr
[E911MLPPBehavior]
Defines the E911 (or Emergency Telecommunication
Services/ETS) MLPP Preemption mode:
■ [0] = (Default) Standard Mode - ETS calls have the
highest priority and preempt any MLPP call.
■ [1] = Treat as routine mode - ETS calls are handled
as routine calls.
Note: The parameter is applicable only to analog
interfaces.
resource-prio-req
[RPRequired]
Defines if the device adds the SIP 'resource-priority'
tag to the SIP Require header of INVITE messages for
Tel-to-IP calls.
■ [0] = Disable. The device excludes the SIP
'resource-priority' tag from the SIP Require header.
■ [1] = (Default) Enable. The device adds the SIP
'resource-priority' tag to the SIP Require header.
Note: The parameter is applicable only to MLPP
priority call handling (i.e., only when the
CallPriorityMode parameter is configured to [1]).
Multiple Differentiated Services Code Points (DSCP) per MLPP Call Priority Level
(Precedence) Parameters
The MLPP service allows placement of priority calls, where properly validated users can
preempt (terminate) lower-priority phone calls with higher-priority calls. For each MLPP call
priority level, the DSCP can be set to a value from 0 to 63. The Resource Priority value in the
Resource-Priority SIP header can be one of the following:
MLPP Precedence Level Precedence Level in Resource-Priority SIP Header
0 (lowest) routine
2 priority
4 immediate
6 flash
8 flash-override
9 (highest) flash-override-override
'RTP DSCP for MLPP Routine'
dscp-4-mlpp-rtn
Defines the RTP DSCP for MLPP Routine precedence
call level.
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