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2.3.3.3 Ending an Emergency Cail
When an emergency is over, the dispatch console user can end the Emergency Alarm. The visual indication on the
console GUI is removed, and the console informs the other operator positions that the emergency is over
(“Emergency End/Knockdown”). The emergency mode remains active on the initiating radio unit until it is ended
(reset) by the radio user.
2.3.4 Radio Patch Control
MEC 7500 console users can patch communication between trunked and/or conventional radios that are normally
unable to communicate with each other due to different features, programming, or even different frequency bands. A
patch group is a group of linked resources that can both receive messages from a console and transmit to all other
members of the patch group.
2.3.4.4 Setting up a Standard Patch
Patches are supported between trunked resources and/or conventional resources. After the patch is created, the
dispatch console transmits all audio on one resource to all other resources in the patch group. In a patch between
trunked resources, patched radio users with displays see the ID or alias of the other patched radio(s), as opposed to
that of the console. This minimizes confusion and the need for the dispatch operator to intervene in the call. Patches
are automatically re-established if interrupted, so the MCC 7500 user can concentrate on continuing operations.
2.3.4.2 Pre-Defined Patches
Patches can be pre-defined and automatically re-initiated each time a dispatch console computer is restarted
("Patch Auto-Start”).
2.3.5 Call Management and Control
2.3.5.1 Automatic Prioritization of Calls
Calls on the MCC 7500 console are prioritized through a transmission hierarchy. Calls from primary supervisors take
priority over those from secondary supervisors, which in turn take priority over non-supervisors. Instant Transmit or
All-Points Bulletin (APB) transmissions, regardless of whether they are from a supervisor, take priority over general
or patch transmissions.
Multiple dispatch console operators can be designated as primary supervisors on the same system, which is useful
when multiple agencies share one system. With the Network Manager Client installed, console supervisors can
disable and enable operator console functionality as needed.
2.3.5.2 Nianuai Prioritization of Calls
“System Access Priority Select” allows a dispatch operator te prioritize trunked resources on the system as either
“normal” or “tactical.” A dispatch operator can change the priority of a trunked resource to tactical to give the
resource a better chance of gaining communication access on a busy system. Only emergency calls have a higher
priority than tactical. When the System Access Priority status of a resource is changed, itis updated at all dispatch
consoles in the systems that are monitoring that trunked resource.
2.3.5.3 Using the Niulti-Select Feature
The Multi-Select feature allows a dispatch console to define groups of selected radio resources. When a Multi-
Select group is opened, all of the resources in the group are simultaneously selected. Resources can be added or
removed from a Multi-Select group while it is cpen or closed. The dispatcher can transmit on several resources
simultaneously or can listen to multiple resources simultaneously in their headset or select speakers.
2.3.54 Standard Call Indications
The MCC 7500 console indicates the availability of any given resource, regardless of whether the resource is
involved in a transmission. An inbound call indication provides the dispatch operator with a visual cue of audio
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