CHAPTER19 Coders and Profiles
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
[TelProfile_CallPriorityMode] ■ [1] MLPP = Enables MLPP Priority Call handling.
MLPP prioritizes call handling whereby the relative
importance of various kinds of communications is
strictly defined, allowing higher precedence
communication at the expense of lower precedence
communications. Higher priority calls override less
priority calls when, for example, congestion occurs in a
network.
■ [2] Emergency = Enables Preemption of IP-to-Tel
E911 emergency calls. If the device receives an E911
call and there are unavailable channels to receive the
call, the device terminates one of the channel calls and
sends the E911 call to that channel. The preemption is
done only on a channel belonging to the same Trunk
Group for which the E911 call was initially destined and
if the channel select mode (configured by the
ChannelSelectMode parameter) is set to other than By
Dest Phone Number (0). The preemption is done only
if the incoming IP-to-Tel call is identified as an
emergency call. The device identifies emergency calls
by one of the following:
✔ The destination number of the IP call matches one
of the numbers configured by the
EmergencyNumbers parameter. (For E911, you
must configure the parameter to "911".)
✔ The incoming SIP INVITE message contains the
“emergency” value in the Priority header.
Note:
■ The parameter is applicable to analog and digital
interfaces.
■ For FXO interfaces, the preemption is done only on
existing IP-to-Tel calls. In other words, if all the current
FXO channels are busy with calls that were initiated by
the FXO (i.e., Tel-to-IP calls), new incoming emergency
IP-to-Tel calls are rejected.
■ For more information, see Pre-empting Existing Call for
E911 IP-to-Tel Call.
■ The corresponding global parameter is
CallPriorityMode.
Behavior
'Disconnect Call on Detection of
Busy Tone'
disconnect-on-busy-tone
[TelProfile_
DisconnectOnBusyTone]
Enables the device to disconnect the call upon detection of
a busy or reorder (fast busy) tone.
■ [0] Disable
■ [1] Enable (default)
Note:
■ The parameter is applicable only to FXO and CAS.
■ The corresponding global parameter is
DisconnectOnBusyTone.
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