Questions and Answers
Which call type allows for a one-to-one conversation that is not heard by other users in the talk group?
What function must be activated in order to speak during a Group Call?
Which type of call does not allow the user to speak, indicating it is intended for announcement purposes?
What feature indicates that a user has moved out of the group call area during an active session?
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What type of users have the ability to call other radio users and OCC/DCC based on their access level?
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Which call type involves a selection of a talk group position and pressing a specific button to initiate communication?
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What aspect of the radio system provides a visual and audible indication of the calling party/group?
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What feature allows for the configuration of call features in Hand Portable Radios?
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What is the primary function of a Priority Alert Call?
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What is the purpose of the Call Inclusion feature?
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What is the primary purpose of a Broadcast Call within the network?
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Which type of call allows only designated personnel to initiate it within the train communication system?
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Which capability does Group Patching provide to the Controller?
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What does the Late Entry Facility do for users?
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What type of emergency call is automatically routed to a designated Traffic Controller?
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What feature allows only one member of a group to speak during a Group Call?
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What does the Hold Function enable in the radio communication system?
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In the context of Call Groups, how can users modify their participation?
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What happens when a call is not answered within the specified time frame?
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Which feature allows identification of users on communication lines?
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What is the maximum data transfer rate for Protected Circuit mode Data?
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What is the purpose of the Call Forwarding function within the RCW?
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What type of call allows the transfer of predefined text status messages from trains?
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Which call type involves user coordinations for those intending to speak?
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Study Notes
Call Management Features
- Calls unanswered within a set timeframe automatically transfer to a designated Controller.
- Incoming Priority Alert Calls trigger a pop-up with Train ID and location, enabling the Controller to acknowledge and initiate two-way communication.
- Traffic Controllers can participate in active calls through 'Call Inclusion', employing pre-emption and forced call clearing capabilities.
- Group Patching allows for handling call authorization for specific calls or users; configurations of Patch Groups can be pre-stored on the desktop for easy access and modification.
User Identification and Communication
- RCW displays 'Calling Line and Connected Line Identifications' to show user identities and associated Radio Base Stations.
- Late Entry Facility accommodates users who are busy or unavailable during group calls.
- 'Call Hold' functionality is included in RCW to manage call interruptions.
Call Forwarding and Group Call Dynamics
- RCW enables call forwarding to another Controller if the original is busy or non-responsive within a designated time.
- Users can belong to multiple Call Groups, with local areas for Group Calls adjustable within the Network.
- Only one member can speak at a time in a Group Call, though Controllers can interrupt as needed; calls operate in half-duplex mode.
Specialized Call Types
- Broadcast Calls are one-way communications from a single user to all in the same Call Group, initiated only by OCC/DCC.
- Emergency Calls can be initiated by Train-borne Mobile, Hand Portables, and Control Centres, categorized into:
- Train Emergency Call, automatically routed to the designated Traffic Controller.
- Other essential identifiers displayed on the Radio Control Head post successful log-on.
Hand Portable Radio Features
- Hand Portable Radio users can initiate calls to other users and control centres based on their access level.
- Functional identity of the calling party/group is indicated through short audible and visual cues.
Types of Calls via Hand Portable Radios
- Individual Calls are private, one-to-one conversations not audible to other users.
- Group Calls allow users to talk to a selected group after obtaining permission indicated by audio and visual signals; out-of-range notifications are provided for users who stray from the call area.
- Users cannot speak during a Broadcast Call but are informed of this restriction.
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Description
This quiz delves into the protocols for handling emergency calls, including priority alerts and call transfer mechanisms. Test your understanding of the systems in place, such as how calls are escalated and acknowledged by the Controller. Ensure you're familiar with the key procedures involved.
