作者: David F. Wheeler , David C. Ball
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摘要: In a telephone network, an intelligent peripheral (IP) provides variety of auxiliary call processing functions, such as announcement playback and digit collection. response to each call, the IP queries service control point (SCP) over data for instructions call. The runs software select one SCP from number SCPs on obtain requisite identified SCP. For identifies subscriber uses NPA-NXX D digits that access first mapping table CLLI code identifying Using table, accesses second mate two codes, also goes through all Internet Protocol addresses SCPs. selects mated pair using address. algorithm different ones calls thereby balance load places various ports.