User's Manual 1064 Document #: LTRT-27045
Mediant 1000B Gateway & E-SBC
Parameter Description
 When this feature is enabled and only one RTP port is available,
only one call can be made by the FXS endpoint, as there is no
free RTP port for a second call.
 When this feature is enabled and you are using the Call Forking
feature, every forked call is sent with a different RTP port. As the
device can fork a call to up to 10 destinations, the device
requires at least 10 free RTP ports.
 The parameter is applicable only to FXS interfaces.
62.10.5.9 MLPP and Emergency Call Parameters
The Multilevel Precedence and Preemption (MLPP) and emergency E911 call parameters
are described in the table below.
Table 62-50: MLPP and Emergency E911 Call Parameters
Parameter Description
Call Priority Mode
configure voip > gateway
dtmf-supp-service supp-
service-settings > call-
prio-mode
[CallPriorityMode]
Global parameter defining call priority handling.
You can also configure the functionality per specific calls, using
Tel Profiles (TelProfile_CallPriorityMode). For a detailed
description of the parameter and for configuring the functionality
in the Tel Profiles table, see ''Configuring Tel Profiles'' on page
428.
Note: If the functionality is configured for a specific Tel Profile,
the settings of the global parameter is ignored for calls
associated with the Tel Profile.
Emergency E911 Parameters
E911 Gateway
configure voip > sip-definition
settings > e911-gateway
[E911Gateway]
Enables Enhanced 9-1-1(E9-1-1) support for ELIN handling in a
Microsoft Skype for Business environment and routing to a
PSTN-based emergency service provider.
 [0] Disable (default)
 [1] NG911 Callback Gateway = Enables the ELIN Gateway.
 [2] Location Based Manipulations = Enables ELIN Gateway
and location-based manipulation. For more information, see
Location Based Emergency Routing on page 290.
For more information on E9-1-1 in a Skype for Business
environment, see E9-1-1 Support for Microsoft Skype for
Business on page 280.
Note:
 The parameter is applicable only to Gateway calls.
 The parameter is applicable only to digital interfaces.
E911 Callback Timeout
configure voip > sip-definition
settings > e911-callback-timeout
[E911CallbackTimeout]
Defines the maximum interval within which the PSAP can use
the ELIN to call back the E9-1-1 caller. This interval starts from
when the initial call established with the PSAP is terminated.
The valid range is 1 to 60 (minutes). The default is 30.
Note: The parameter is applicable only to the Gateway
application (digital interfaces).
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