ISDN Unit (Not for U.S.)
Depending on the configuration, it may be necessary to adapt the ISDN unit of the system to an ISDN trunk to display the call charges as a monetary amount. The ISDN unit provided by the network depends on the carrier.
This unit can be specified for each trunk group (for example, for the external code 0 or 9).
Step by Step
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Prerequisite: System administration has been started  .
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Select and confirm.
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Confirm.
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or
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Enter the code.
Select trunk group:
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or
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Press these keys.
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or
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Confirm.
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or
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Enter the trunk group directly and
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Confirm your entry.
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Enter the code.
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or
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Select and confirm.
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Enter the unit.
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Delete the last few characters one by one (on optiset E memory only).
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Confirm your entry.
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