| Topics
today in PSTN |
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| n | A: Switching
types |
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| n | Connectionless/
connection oriented |
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| n | Packet/circuit |
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| n | B: PSNT
exchanges and interfaces |
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| n | interface Q.512 |
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| n | using access and
trunk networks |
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| n | signaling |
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| n | network
management |
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| n | internetworking
(telecommunications between networks) |
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