Per-call facility options - UKa specific - call priority
Description of Facility
| Facility code | 00 = low |
| 05 hex | 01 = medium |
| 10 = high |
*** This facility code must follow the national options marker **
CCITT compatibility
Not a CCITT facility.
ISO 8878 compatibility
ONA compatibility
Implementation issues
7.2- Per-call facility options - UKa specific - CUG interlock code
Description of Facility
| Facility code | interlock code as defined in |
| 41 hex | tables |
*** this facility code must follow the national options marker.
A closed user group (CUG) permits the DTEs belonging to the closed user group
to communicate with each other but precludes communication with other users.
UKa support
Each member of the CUG identifies it with a local CUG ID (1-99) but internally
to the network the CUG is represented by a CUG interlock code. This is a number
in the range 1-32767, Public Network allocates numbers from the bottom up.
7.3- Per-call facility options - UKa specific - ID facility
Description of Facility
| Facility code | UKa ID |
| Hex C0 |
*** this facility must follow the national options marker.
CCITT compatibility
not a CCITT facility
7.4- Per-call facility options - UKa specific - Multi-user VC
Description of Facility
| Facility code | |
| Hex 05 |
UKa Answers
Question: What is the coding of the UKa Multi-user VC facility Does this require the national options marker ?
Answer : Hex 05, mask of hex 000. Does not require national options marker.
CCITT compatibility
This is not a CCITT facility
ISO 8878 compatibility
ONA compatibility
Implementation issues
7.5- Per-call facility options - UKa specific
- Validation error facilities
Description of Facility
| Facility code | ||
| C5 hex |
*** This facility must follow the national options marker.
CCITT compatibility
This is not a CCITT facility.
ISO 8878 compatibility
ONA compatibility
Implementation issues
7.6- Per-call facility options - UKa specific
- Call intention facility
Description of Facility
| Facility code | ||
| 02 hex |
This facility must follow the national options marker.
CCITT compatibility
This is not a CCITT facility
ISO 8878 compatibility
ONA compatibility
Implementation issues
