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Dial tone or silence
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The trunk is connected. Go to Step 5.
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Busy tone
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The trunk is either busy processing a call or is out of service. Check status trunk.
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Reorder tone
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The trunk requested is in a different Media gateway from your station, and inter-PN resources are not available to access it.
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Intercept tone
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The port addressed is not a trunk, or it is a DID trunk, or the trunk is not administered.
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Confirmation tone
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The port is a tone receiver.
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