| 标准编号 | ISO/IEC ISP 12067-4:1996 |
| 标准名称 | Information technology -- International Standardized Profile RB -- Relaying the connection-mode Network Service -- Part 4: Definition of profile RB51.1111, relaying the connection-mode Network Service between CSMA/CD LAN subnetworks and PSDNs using virtual calls over a PSTN leased line permanent access |
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