40
When no danger to safety exists anymore (for instance if you
leave the RF sensitive area), the TXI Mode can be deacti-
vated and the MTH800 returns to standard operation.
Setting the TXI Mode is described in “Setting Transmit Inhibit
(TXI) Mode” on page 102.
Activated Transmit Inhibit is indicated by the solid orange
LED and flashing between the two displays:
Dynamic Group Number Assignment (DGNA)
DGNA provides the ability for a network operator or
authorised user to dynamically allocate new, or update
existing talkgroups to selected terminals over the air
interface. Using supplementary services messages (SS-
DGNA), the network operator can command your terminal to
add talkgroups or to update the existing talkgroups, or to
delete talkgroups from the list. This operation is performed by
transmitting the data into your MTH800.
DGNA Reception with Notification Message
When a DGNA message is received and
DGNA notification was configured by your
Service Provider, you will get a tone
indication and notification message
(“
Talkgroup list updating”), and then a
display of the new assignments.
Your Service Provider can gather some Talkgroups under one Super-
group and transmit it to your MTH800 as a DGNA. In such a case, you
will be able to participate in calls to/from all the groups in the Super-
group.
Optns Contcs
Folder 1
Police
Hello
TXI Mode
Contcs
Folder 1
Police
Hello
TXI Mode
Activated
Talkgroup
list
updating
6802972C35.book Page 40 Monday, August 16, 2004 9:22 PM
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