ISUP PPL Event Indications for Other PPL Components (ITU)

PPL Component | Event ID | Event
--- | --- | ---
BLS (0x0016) | 0x01 | First Expiration of T13
0x02 | First Expiration of T15
CRS (0x0018) | 0x01 | First Expiration of T17
CRCR (0x0044) | 0x01 | REL received with check indicator set to ‘3’
0x02 | T27 timer expiration
0x03 | Second failure of COT
CGRS (0x001B) | 0x01 | First Expiration of T23
| 0x02 | UCIC Stop request received
CGRR (0x001C) | 0x01 | Wait for CPC Reset TO, remote reset failed.
MGBS (0x0045) | 0x01 | First Expiration of T19
0x02 | First Expiration of T21
0x03 | Stop event received in Wait for CGBA state
0x04 | Stop event received in Wait for CGUA state
| 0x05 | Received unexpected CGBA
| 0x06 | Received unexpected CGUA
| 0x0A | CGBA Status Bit Error Handling function. (Outgoing bit set to 0. Incoming bit set to 1.)
| 0x0B | CGBA Status Bit Error Handling function. (Outgoing bit set to 1. Incoming bit set to 0.)
| 0x0C | CGUA Status Bit Error Handling function. (Outgoing bit set to 0. Incoming bit set to 1.)
| 0x0D | CGUA Status Bit Error Handling function. (Outgoing bit is set to 1. Incoming bit is set to 0.)
HGBS (0x0047) | 0x01 | First Expiration of T19
0x02 | First Expiration of T21
0x03 | Stop event received in Wait for CGBA state
0x04 | Stop event received in Wait for CGUA state
| 0x05 | Received unexpected CGBA
| 0x06 | Received unexpected CGUA
| 0x0A | CGBA Status Bit Error Handling function. (Outgoing bit set to 0. Incoming bit set to 1.)
| 0x0B | CGBA Status Bit Error Handling function. (Outgoing bit set to 1. Incoming bit set to 0.)
| 0x0C | CGUA Status Bit Error Handling function. (Outgoing bit set to 0. Incoming bit set to 1.)
| 0x0D | CGUA Status Bit Error Handling function. (Outgoing bit is set to 1. Incoming bit is set to 0.)

See Programmable Protocol Language.
In PPL, a condition that, when met, drives a state machine (PPL Component) from one state to another, by invoking an associated Primitive. In PPL files, an Event is marked by an arrow and text.