| 词条 | Interconnect User Part |
| 释义 | Interconnect User Part (IUP) is a national specific Signaling System 7 protocol for interconnect between public telephone networks in the United Kingdom. This protocol was formerly known as BTNUP. It is specified in document PNO-ISC/SPEC/006 which is published by the NICC as ND1006:2007/05. {{technology-stub}} 2 : Signaling System 7|Integrated Services Digital Network |
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