Motorola MTP830 S Product Information Manual page 57

Depending on the group type the following is allowed:
• Static – only selection is allowed.
• Semi-Static – selection and reassignment are allowed.
• Dynamic – selection, deassignment, and reassignment are allowed.
The groups can be assigned as not attached, attached as scanned or attached as selected. Assignment of the group
through DGNA with attached as selected makes it the selected group of the radio. If the group is assigned with
attached as scanned, if it is not already in the currently active scan 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 new 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).
In all the cases, the talkgroup is removed from all the scan lists as no matter if they are active or inactive.
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 (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. Additionally, 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.
When the DGNA operation is successful, if the radio is provisioned for DGNA user notification, you are notified
about the operation. For example group added, group deleted. The notification is displayed until you confirm the
operation. In case you receive a call, the message continues displaying until you confirm it.
On viewing an assigned talkgroup notification, the radio provides the ability for the user to make that group to be a
selected group.
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.
Services and Features | 57
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