list, the radio adds this group to a SwMI Controlled scan list and begins monitoring downlink signaling
addressed to this group. The SwMI controlled list holds up to ten groups, and the radio monitors these
groups as well as groups in the user scan list.
If the talkgroup list is full when adding a group, the radio rejects the assignment operation. If the SwMI
controlled list is full and the assignment is with attached as scanned, the attachment is rejected.
When a talkgroup de-assignment is received, depending on the codeplug settings (DGNA Operations
field in the Talkgroup List) the radio behavior is as follows:
• If the DGNA Operations field is set to Static or Semi-Static, the radio;
- leaves the talkgroup and the parameters assignments to folders unchanged.
- sends an acknowledgment PDU with notification the group definition has been removed.
• If the DGNA Operations field is set to Dynamic or if the group is not in the talkgroup list, the radio;
- removes the talkgroup from the talkgroup list, if the talkgroup is in the list.
- removes all the occurrences of the talkgroup from the folder list.
- sends an acknowledgment PDU with notification the group definition has been removed (also if
the talkgroup has been deleted, or the talkgroup does not exist in the radio).
Even if the talkgroup is de-assigned, the radio can receive group calls or emergency group calls for
any assigned scan list.
If the de-assignment is for a group in the scan list, the group remains in the list. However, it is not
monitored.
If the de-assignment is for a group in the SwMI controlled list, the group is removed from the list.
If the de-assignment is for the selected group, depending on the service provider settings, the radio;
• notifies that there is no group attached, when in the group mode, and does not attach to another
talkgroup automatically.
• attaches to the previously selected talkgroup, which is the talkgroup it was attached to before the
DGNA being assigned. If the previous selected group is not present then the radio shows that there
is no group attached and displays No Group.
• attaches to a default talkgroup configured by the service provider. If the default talkgroup is
unavailable (it was deleted), the radio enters the No Group state.
At each talkgroup change, an appropriate notification is shown on the display.
If the de-assignment is for an announcement group, the talkgroup is removed from the talkgroup list.
Also, all the groups that are associated with this announcement group do not have an associated
announcement group. If the currently selected talkgroup is associated with this announcement group,
the radio stops scanning the associated announcement group.
If DGNA user notification is provisioned, the user is notified once the DGNA operation is successful.
For example, when a group is added or deleted. The notification is displayed until you confirm the
operation. In case you receive a call, the message continues displaying until you confirm it.
The radio supports the reception of a DGNA Assignment that is addressed to its selected talkgroup as
a supergroup of the selected group. All signaling addressed to the supergroup is monitored in addition
to signaling addressed to the selected group, any announcement or associated groups, and groups in
the active scan lists.
When the selected group is unselected, the radio ceases processing signaling to the supergroup that
was associated with that selected group.
The radio receives the lifetime of the supergroup as part of the assignment signaling. If a subsequent
assignment to the same group is not received within that lifetime, the radio ceases monitoring that
supergroup.
MN002955A01-AA
Chapter 2: Services and Features
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