skos:altLabel | - CCITT X.25
- CCITT X.25 recommendation
- ISO/IEC 8208
- Packet Assembler/Disassembler Protocol
- X.25 Packet Switching Network
- X.25 Recommendation
- X.25 data network
- X.25 packet-switching
- X.25 protocol
- X.25 § History
- X25 network
- correspond to OSI layers 1 to 3
- international digital connections
- x.25
- x25
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