Tariffs
Security
X.2 options comparison of networks
7.1.2 Virtual Circuits
7.1 CALL REQUEST PACKET
7.1 INCOMING CALL PACKET
7.2 CALL ACCEPTED PACKET
7.2 CALL CONNECTED PACKET
7.3 CLEAR REQUEST PACKET
7.3 CLEAR INDICATION PACKET
7.4 CLEAR CONFIRMATION PACKET
7.5 DATA PACKET
7.6 - RR PACKET
7.7 RNR PACKET
7.8 REJ PACKET
7.9 RESET REQUEST PACKET
7.9 RESET INDICATION PACKET
7.10 RESET CONFIRMATION PACKET
7.11 INTERRUPT PACKET
7.12 INTERRUPT CONFIRMATION PACKET
7.13 RESTART REQUEST PACKET
7.13 RESTART INDICATION PACKET
7.14 RESTART CONFIRMATION PACKET
7.15 on-line facility registration
7.16 on-line facility confirmation
7.17 Diagnostic Packet
7.18 Diagnostic Codes
CCITT X.2 Per-call facility options
8.1 Flow control parameter negotiation
8.2 Throughput class negotiation facility
8.3 Closed User Group Selection facility
8.4 Closed User Group with Outgoing Access Selection
8.5 Bilateral Closed user group facility
8.8 Network User Identification (NUI) facility
8.9 Charging Information facilities
8.10 RPOA selection
8.11 Call deflection selection facility
8.12 Call redirection or deflection notification (CRN)
8.13 Called line address Modified Notification(CLAMN)
8.14 Transit Delay Selection and indication
8.15 Abbreviated Address Calling
9 - CCITT defined DTE facilities
9.1 Calling Address extension facility
9.2 Called Address extension facility
9.3 Minimum Throughput Class
9.4 end-to-end transit delay
9.5 priority facility
9.6 Protection facility
9.7 Expedited data negotiation facility
CCITT X.2 L3 Subscription options
10.1 On-line facility registration
10.2 Extended Packet Sequence Numbering
10.3 D-bit modification
10.7 One-way Logical Channel Outgoing
10.8 One-way Logical Channel Incoming
10.8 One-way Logical Channel Incoming
10.9 Nonstandard Default Packet sizes
10.10 Nonstandard Default Window sizes
10.11 Default Throughput Classes Assignment
10.10 Nonstandard Default Window sizes
10.11 Default Throughput Classes Assignment
10.12 Flow control Parameter Negotiation
10.13 Throughput Class Negotiation
10.14 Closed user group
10.15 Closed user group with Outgoing Access
10.16 Closed user group with Incoming Access
10.17 Incoming Calls Barred within a CUG
10.18 Outgoing Calls Barred within a CUG
10.15 Closed user group with Outgoing Access
10.16 Closed user group with Incoming Access
10.17 Incoming Calls Barred within a CUG
10.18 Outgoing Calls Barred within a CUG
10.19 Bilateral Closed User Groups
10.20 Bilateral CUG with outgoing Access
10.20 Bilateral CUG with outgoing Access
10.21 Fast Select Acceptance
10.22 Reverse Charging Acceptance
10.23 Local charging prevention
10.24 Network User Identification (NUI)
10.25 NUI override
10.26 Charging information
10.27 RPOA Subscription
10.28 Hunt Group
10.29 Call redirection
10.30 Call deflection subscription
10.31 TOA/NPI address subscription
10.32 Direct Call
11 quality of service parameters
11.1 Call request delay
11.2 DATA packet transfer delay
11.3 Established Call Clear
11.4 Spontaneous Resets
Other Subjects
X32 configuration
X75 configuration
UKa specific configuration options
Glossary
| BSI | British Standards Institute |
| BT | British Telecom plc |
| CCITT | International Telephone and Telegraph Consultative Committee |
| CLAMN | Called line address modified notification |
| CRN | Call redirection notification |
| CUG | Closed User Group |
| DCE | Data Circuit-terminating Equipment (Network end of link) |
| DNIC | Data Network Identification Code |
| DTE | Data Terminal Equipment (Customers terminal equipment) |
| UK | Global Network Service |
| UK(a) | Existing UK X.25 service |
| UK(b) | Enhanced Worldwide X.25 service |
| ICUG | International Closed user group |
| ISO | International Organisation for Standardisation |
| LCN | Logical Channel Number |
| LCGN | Logical Channel Group Number |
| NUA | Network User Address |
| NUI | Network User Identification |
| ONA | Open network architecture |
| PAD | Packet Assembler/Dissassembler |
| PVC | Permanent Virtual Circuit |
| QOS | Quality Of Service |
| RPOA | Recognised Private Operating Agency |
| SVC | Switched Virtual Circuit |
| X.2 | CCITT Optional User Facilities |
| X.25 | CCITT packet terminal interface recommendation |
| X.28 | CCITT start-stop terminal interface recommendation |
| X.75 | CCITT packet internetwork interface recommendation |
