Version 7.2 1149 Mediant 500L Gateway & E-SBC
User's Manual 69. Configuration Parameters Reference
Parameter Description
If the incoming Setup message doesn't contain a valid
Precedence Level value, the default value is used in the
Resource-Priority header of the outgoing SIP INVITE request. In
this scenario, the character string is sent without translation to a
numerical value.
MLPP DiffServ
configure voip/gateway
dtmf-supp-service supp-
service-settings/mlpp-
diffserv
[MLPPDiffserv]
Defines the DiffServ value (differentiated services code
point/DSCP) used in IP packets containing SIP messages that
are related to MLPP calls. The parameter defines DiffServ for
incoming and outgoing MLPP calls with the Resource-Priority
header.
The valid range is 0 to 63. The default is 50.
Preemption Tone Duration
preemp-tone-dur
[PreemptionToneDuration]
Defines the duration (in seconds) in which the device plays a
preemption tone to the Tel and IP sides if a call is preempted.
The valid range is 0 to 60. The default is 3.
Note:
If set to 0, no preemption tone is played.
MLPP Normalized Service Domain
mlpp-norm-ser-dmn
[MLPPNormalizedServiceDomain]
Defines the MLPP normalized service domain string. If the
device receives an MLPP ISDN incoming call, it uses the
parameter (if different from ‘FFFFFF’) as a Service domain in
the SIP Resource-Priority header in outgoing INVITE messages.
If the parameter is configured to ‘FFFFFF’, the Resource-Priority
header is set to the MLPP Service Domain obtained from the
Precedence IE.
The valid value is 6 hexadecimal digits. The default is ‘000000’.
Note: The parameter is applicable only to the MLPP NI-2 ISDN
variant with CallPriorityMode set to 1.
mlpp-nwrk-id
[MLPPNetworkIdentifier]
Defines the MLPP network identifier (i.e., International prefix or
Telephone Country Code/TCC) for IP-to-ISDN calls, according
to the UCR 2008 and ITU Q.955 specifications.
The valid range is 1 to 999. The default is 1 (i.e., USA).
The MLPP network identifier is sent in the Facility IE of the ISDN
Setup message. For example:
MLPPNetworkIdentifier set to default (i.e., USA, 1):
PlaceCall- MLPPNetworkID:0100
MlppServiceDomain:123abc, MlppPrecLevel:5
Fac(1c): 91 a1 15 02 01 05 02 01 19 30 0d 0a 01 05 0a 01 01
04 05 01 00 12 3a bc
MLPPNetworkIdentifier set to 490:
PlaceCall- MLPPNetworkID:9004
MlppServiceDomain:123abc, MlppPrecLevel:5
Fac(1c): 91 a1 15 02 01 0a 02 01 19 30 0d 0a 01 05 0a 01 01
04 05 90 04 12 3a bc
MLPP Default Service Domain
mlpp-dflt-srv-domain
Defines the MLPP default service domain string. If the device
receives a non-
MLPP ISDN incoming call (without a Precedence
IE), it uses the parameter (if different than “FFFFFF”) as a
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