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Menu → More . . . → Services → Assistance Call
Call Modification
Call Modification is a feature that allows your service provider to modify the call in order to optimize it and adjust to
a current situation.
Modification can cover:
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Call priority — modified during call setup.
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Call type — modified during call setup.
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Call encryption — modified during an ongoing call (but not in the transmission phase).
When the call is modified, your radio displays Call Modified message.
When a recently modified call requires the PTT button to transmit, your radio displays Call ModifiedUse PTT.
All modifications are made by your service provider and the radio only follows them. You have no influence on
ongoing call modifications.
When call priority is changed to emergency:
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The display indicates that an Emergency Group Call has been received.
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The radio plays a special audio alert.
Note: If a Group Call is modified into an Emergency Group Call, no emergency related features are
triggered.
If call modification requested by your service provider cannot be followed by the radio (due to its settings), the radio
rejects it and displays Service Not Available message.
Local Site Trunking
This mode is also called as Fallback Mode and it allows more than one radio from the same site to communicate when
the link between the site and the network central controller fails. Entering and exiting Local Site Trunking (that is,
returning to System Wide Services) is done automatically. In this mode some services are unavailable.
Note: Your service provider can disable this mode.
Entering Local Site Trunking
When your radio receives a Local Site Trunking indication from the system, the following occurs:
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Your radio plays an Entering Local Site Trunking tone.
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Display shows the Local Area Service message.
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Display icons and soft keys turn olive.
Note: Noticeable only on the color display.
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Any call in progress is dropped upon entering Local Site Trunking Mode.
If configured by your service provider, this message/alert is periodically repeated to remind you that your radio is still
operating in Local Site Trunking Mode. The following features are available:
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Registration
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Attachment
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Group Call
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Emergency Call
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