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L3 Global Call Reference (0x0009) Atomic Function

This section describes the atomic functions and PPL events for the L3 Global Call Reference PPL component.

L3 Global Call Reference PPL Atomic Functions

The following Atomic Function in Layer 3 GCR PPL Component (0x0009) adds functionality to provide for ISDN Bearer Connection Independent Supplementary Services. See Common Atomic Functions for the AFs common to all PPL components.

AF Number | 88
Name | Setup Call Reference
Type | Normal
Description | Sets up the Layer 3 GCR call reference data structure using the call reference specified in the ICB.
Arg1 | N/A
Arg2 | N/A

Results of Atomic Function 88

AF Number | 88
Name | Normal
Type | Normal /Blocking/Test
Description | Normal /Blocking/Test
Arg1 | Description
| Input Range
Arg2 | Description
| Input Range

L3 Global Call Reference L3/L5 Events

The sending of the PPL events to the host is configurable with PPL Configuration Bytes 3–10. These events are only valid using the ISDN Raw IE type (0x11)

.

PPL Event Request (L5 to L3) | PPL Event Indication (L3 to L5)
--- | ---
0x0001 Facility 0x0002 Facility ACK 0x0003 Facility Rej 0x0004 Restart 0x0005 Restart ACK 0x0006 Status 0x0007 Status Enq 0x0008 User Info | 0x0001 Facility Indication 0x0002 Facility ACK Indication 0x0003 Facility REJ Indication 0x0004 Restart 0x0005 Restart ACK 0x0006 Status 0x0007 Status Enquiry 0x0008 User Information

See Programmable Protocol Language.
AF. A predefined PPL software routine that performs a single, simple task, such as "Transmit Line Signaling" or "Allocate Digit Buffer." It is composed of standard software interrupts, calls, and data formats used by applications. Each AF has two values named "Arguments." AFs 1-50 are generic, and apply to all PPL components. AFs 51 and above apply to specific components. An AF is called "Atomic" because it is the smallest useful unit in PPL.
Protocol layer of the CSP.
A programmable software component that uses PPL state machines that can be modified with the PPL Tool.
See Integrated Services Digital Network.
See Atomic Function.
See Information Control Block.
A condition that, when met, drives a state machine from one state to another. A condition that drives a Component out of its current state by invoking an associated primitive.
Positive acknowledgment to a message