Call Cut-Through Parameters; Mlpp Parameters - AudioCodes Mediant 2000 User Manual

Call Cut-Through Parameters

A.11.5.7
The call cut-through parameters are described in the table below.
Parameter
[DigitalCutThrough]

MLPP Parameters

A.11.5.8
The Multilevel Precedence and Preemption (MLPP) parameters are described in the table
below.
Parameter
Web/EMS: Call Priority Mode
[CallPriorityMode]
SIP User's Manual
Table A-46: Call Cut-Through Parameters
Enables PSTN CAS channels/endpoints to receive incoming IP calls even
if the B-channels are in off-hook state.

[0] Disabled (default)

[1] Enabled
When enabled, this feature operates as follows:
A Tel-to-IP call is established (connected) by the device for a B-
1
channel.
The device receives a SIP BYE (i.e., IP side ends the call) and plays a
2
reorder tone to the PSTN side for the duration set by the
CutThroughTimeForReOrderTone parameter. The device releases the
call towards the IP side (sends a SIP 200 OK).
The PSTN side, for whatever reason, remains off-hook.
3
If a new IP call is received for this B-channel after the reorder tone has
4
ended, the device "cuts through" the channel and connects the call
immediately (despite the B-channel being in physical off-hook state)
without playing a ring tone. If an IP call is received while the reorder
tone is played, the device rejects the call.
Notes:

If this parameter is disabled and the PSTN side remains in off-hook
state after the IP call ends the call, the device releases the call after 60
seconds.

A special CAS table can be used to report call status events
(Active/Idle) to the PSTN side during Cut Through mode.

The Digital Cut-Through feature can also be configured as a Tel Profile
(using the TelProfile parameter) and therefore, assigned to specific B-
channels that use specific CAS tables.
Table A-47: MLPP Parameters
Enables priority calls handling.

[0] Disable = Disable (default).

[1] MLPP = MLPP Priority Call handling is enabled. 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 = Preemption of IP-to-Tel E911 emergency calls.
If the device receives an E911 call and there are unavailable
524
Description
Description
Document #: LTRT-68814
Mediant 2000