IDT

The IDT object is a child of the IDTs object. It identifies an Integrated Digital Terminal, which is the NE end of an interface group, over an Interface Group consisting of 28 DS1s connected to a DLC or RDT serving POTS telephones.

The IDT must have a child IDT interface object for each DS1 in the Interface Group.

To create and activate an IDT, you need to do the following.


Managing IDTs is subject to the following restrictions.
  • You cannot activate an IDT if an IDT Interface required for the primary or secondary control channel is not enabled.
  • You cannot deactivate or disable an IDT if an Access Device associated with it is active or enabled.
  • You cannot delete an IDT if an Access Device is associated with it.

Object-Specific Actions
Inhibit EOC PPS Prevents Path Protection Switching for the EOC on this IDT. No switching will be possible, regardless of whether it is initiated automatically or requested by the EMS user or the DLC.
Enable EOC PPS Allows Path Protection Switching for the EOC on this IDT if it was previously inhibited.
Request EOC PPS Requests a Path Protection Switch for the EOC.
Inhibit TMC PPS Prevents Path Protection Switching for the TMC on this IDT. No switching will be possible, regardless of whether it is initiated automatically or requested by the EMS user or the DLC.
Enable TMC PPS Allows Path Protection Switching for the TMC on this IDT if it was previously inhibited.
Request TMC PPS Requests a Path Protection Switch for the TMC.
Resync Performs a resychronization of the state of all CRVs on this IDT, to correct a mismatched state. This action is available only when the IDT is active, the protocol stack is started, and a resynchronization is not already in progress. The Resync status field contains information about the status of the resynchronization.

The object-specific actions are available only if both the Primary Control Channel and Secondary Control Channel fields are set.


Parameter

Access

Description
Access Device number Create A unique number to identify this device, which must not match the number of any other access device. Either type in the number to use, or click on the ellipsis symbol at the end of the field to choose the first free access device number.
Port name Read only A unique identifier for this device among all other devices on the Media Gateway. This identifier is used by child objects of the Call Agent that need to reference this device.
Description Change Inactive A text string used in the EMS System Explorer to identify this IDT. Specify a string of up to 64 characters.
Protocol stack status Read only The status of the IDT in the GR303 Protocol Stack. It is not possible to make GR303 calls using this IDT unless the GR303 Status is Active. Values:
  • Inactive
  • Pending interface activation
    The IDT cannot start because the child IDT Interface required for its control channels is not yet active.
  • Starting
  • Started
  • Stopping
  • Failed
Primary control channel Change Inactive The interface used to carry the EOC and TMC Control Channels. A value of None means that no primary control channel has been specified; in this case you will not be able to activate the port.
Secondary control channel Change Inactive An alternative interface that can carry the EOC and TMC Control Channels. A value of None means that no secondary control channel has been specified. If you have selected an interface rather than None, this interface must be different from the Primary Control Channel.
Flow through provisioning enabled Change Inactive Specifies whether the remote RDT / DLC supports flow through provisioning (sending commands over the EOC to provision the remote equipment, so that provisioning of subscriber lines on the RDT / DLC is not required). To use this option, all the subscriber lines connected to the RDT / DLC must use Signal Function Code values that the MetaSwitch NE supports; the Signal Function Code value is specified in the Individual Line, Business Group Line or PBX line for the subscriber. Note that this option cannot be used with a signal function code of Reversed LRB wink start (Originating only). Values:
  • True
    The NE will send flow through provisioning commands on the EOC when a subscriber using this IDT is added or modified. Provisioning commands should not be issued on the remote equipment.
  • False (default)
    The RDT / DLC must be provisioned manually when a subscriber using this IDT is added or modified.
EOC - active channel Read only The IDT interface currently used by the Active EOC. The Active EOC will use timeslot 12 on the specified IDT Interface, which means that timeslot 12 will not be available for GR303 calls.
EOC - active channel status Read only The status of the Active EOC used by this IDT. Values:
  • Configured
  • Out of service
  • In service
EOC - standby channel Read only The IDT interface currently used by the Standby EOC. The Standby EOC will use timeslot 12 on the specified IDT Interface, which means that timeslot 12 will not be available for GR303 calls.
EOC - standby channel status Read only The status of the Standby EOC used by this IDT. Values:
  • Configured
  • Out of service
  • In service
EOC - last path protection switch time Read only Timestamp of the last successful EOC Path Protection Switch for this IDT. Path Protection Switching may be automatic, or may be initiated by the MetaSwitch NE or remotely.
EOC - path protection switching inhibited Read only States whether Path Protection Switching is inhibited for the EOC Control Channel. Values:
  • Yes
  • No
EOC - force all path protection switches Change When this field is set to True, all EOC Path Protection Switch requests will be 'forced'. Values:
  • True
    The PPS will proceed, even if the Standby EOC is Out-Of-Service.
  • False
    It is not possible to request an EOC PPS onto an Out-Of-Service interface.
EOC - last action status Read only The status of the last EOC action on this IDT. Values:
  • No last action
  • Initiate PPS in progress
  • Initiate PPS successful
  • Initiate PPS failed
  • Inhibit PPS in progress
  • Inhibit PPS successful
  • Inhibit PPS failed
  • Enable PPS in progress
  • Enable PPS successful
  • Enable PPS failed
EOC - last action time Read only Timestamp of the last state change of the EOC - last action status field.
TMC - active channel Read only The IDT interface currently used by the Active TMC. The Active TMC will use timeslot 24 on the specified IDT Interface, which means that timeslot 24 will not be available for GR303 calls.
TMC - active channel status Read only The status of the Active TMC used by this IDT. Values:
  • Configured
  • Out of service
  • In service
TMC - standby channel Read only The IDT interface currently used by the Standby TMC. The Standby TMC will use timeslot 24 on the specified IDT Interface, which means that timeslot 24 will not be available for GR303 calls.
TMC - standby channel status Read only The status of the Standby TMC used by this IDT. Values:
  • Configured
  • Out of service
  • In service
TMC - last path protection switch time Read only Timestamp of the last successful TMC Path Protection Switch for this IDT. Path Protection Switching may be automatic, or may be initiated by the MetaSwitch NE or remotely.
TMC - path protection switching inhibited Read only States whether Path Protection Switching is inhibited for the TMC Control Channel. Values:
  • Yes
  • No
TMC - force all path protection switches Change When this field is set to True, all TMC Path Protection Switch requests will be 'forced'. Values:
  • True
    The PPS will proceed, even if the Standby TMC is Out-Of-Service.
  • False
    It is not possible to request a TMC PPS onto an Out-Of-Service interface.
TMC - last action status Read only The status of the last TMC action on this IDT.
TMC - last action time Read only Timestamp of the last state change of the TMC - last action status field.
Resync status Read only Specifies the status of the Resync action. The Resync action allows the state of all CRVs on this IDT to be resynchronized, to correct a mismatched state. Values:
  • Never done
  • In progress
  • Complete
This field is set to Never done following a software protection switch or deactivation of the object. It remains Never done until the Resync action is taken, when it becomes In progress. It becomes Complete when the Resync action has finished. If any other resynchronization occurs at the same time, this field will not be marked as Complete until that has also finished. If Flow through provisioning enabled is True, a status of Complete indicates that the NE has finished sending any required provisioning commands. Depending on the number of connected phones requiring updates, the remote equipment may take a few minutes to process all the commands and apply the changes; during this time, new subscribers or those whose configuration has changed may be unable to make calls. The value displayed in the EMS is updated regularly, but not immediately following a change. If you wish to update it more quickly, you should use the Refresh action.
Deactivation mode Change Specifies how child objects should be deactivated when deactivating this object. Values:
  • Normal (default)
    All currently active calls will be abandoned.
  • Quiesce
    Wait for all calls to finish before deactivating.
If a Normal deactivation is already in progress, you can force a faster deactivation by changing the value from Normal to Quiesce.
Alarm state Read only Specifies whether any alarms are currently raised for the IDT. Values:
  • Clear
    No alarms are currently raised.
  • Attention Required
    Attention Required - the object is not operating normally, and needs operator intervention.
  • Attend To Dependent
    Attention Required elsewhere - another object on which this object depends is not operating normally.
Alarm log correlator Read only Identifier of the log message for the event that caused the last Attention Required or Attend To Dependent alarm state for this object. This field is reset when the Attention Required alarm events and the Attend To Dependent alarm events are reset to zero.
Attention Required alarm events Read only / Reset Number of times (since the alarm count was reset) that this object's alarm state has gone to Attention Required.
Attend To Dependent alarm events Read only / Reset Number of times (since the alarm count was reset) that this object's alarm state has gone to Attend To Dependent.
Alarm state changed timestamp Read only The time at which the Alarm state last changed.
Alarm events reset timestamp Read only The time at which the Attention Required alarm events was last reset to zero.
Child Attend To Dependent alarms Read only The total number of children of this object that are in Attend To Dependent state.
Child Attend To Dependent alarm events Read only The total number of Attend To Dependent alarms for all children of this object.
Summary child alarm state Read only Summarizes the alarm status for all children of this object. Values:
  • Clear
    No alarms are currently raised.
  • Attention Required
    Attention Required - one or more child objects are not operating normally, and need operator intervention.
  • Attend To Dependent
    Attention Required elsewhere - another object on which one or more child objects depend is not operating normally.
Diagnostics - logging - log level Change Specifies the level of logs recorded for this object. Logs with a priority equal to or greater than the priority specified are recorded. Set to Default level to use the system-wide default level. Values:
  • Level 10 (diagnostics)
  • Level 20 (verbose statistics)
  • Level 30 (verbose operational)
  • Level 40 (statistics)
  • Level 50 (audit)
  • Level 60 (operational)
  • Level 70 (unexpected)
  • Level 80 (error)
  • Level 90 (fatal)
  • Default level (default)
Diagnostics - API trace - enabled Change Specifies whether API tracing is enabled for this object. Values:
  • True
  • False (default)
Diagnostics - API trace - trace tag Change An optional text string inserted into API tracing and PD logging for this object. (This string can include accented / international characters as defined in ISO 8859-1.) If you want to filter on this tag in the craft interface, do not include spaces or any of the characters ^ \ $ * + ? | ( ) , . ' ' " [ ] { }.
Requested status Read only Specifies whether an administrator has attempted to enable the IDT. Values:
  • Active
    The object has been activated.
  • Inactive
    The object has not been activated or has been deactivated.
  • Disabled
    The object has not been enabled or has been disabled.
Actual status Read only Specifies the current status of the IDT. Values:
  • Active
    The object is active.
  • Activating
    Activation is in progress.
  • Deactivating
    Deactivation is in progress.
  • Inactive
    The object is inactive.
  • Disabled
    The object has been disabled.
  • Activation Failed
    The object is inactive because an activation attempt has failed.
  • Failed
    The object was active but has failed.
  • Quiescing
    The object is preparing for normal deactivation. It is operating normally but will not accept any new users.
  • Waiting For Parent
    The object cannot be used because its parent object is not yet active.
  • Parent Failed
    The object cannot be used because its parent object has failed.