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.
See Integrated Services Digital Network.
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