L3P/L5 Events

PPL Event Request (L5 to L3P) | PPL Event Indication (L3P to L5)
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0x0000 Reserved 0x0002 SIGNAL Request 0x0003 Reserved 0x0004 Reserved 0x0005 Clear Request 0x0006 PROTOCOL PARAMETER Request | 0x0000 Event Layer 3 Establish 0x0002 Reserved 0x0003 Event Layer 3 Signal 0x0004 Event Layer 3 Status 0x0005 Reserved 0x0006 Reserved 0x0007 Event Layer 3 Protocol parameter (only for AN side) 0x0014 Purge: PSTN initiated Purge for Userport when timeslot unknown 0x0015 Purge: PSTN returned to Idle state after purge 0x0016 L4 CONNECT REQ 0x0096 ERROR: No Channel Remove Acknowledge from BCC upon PURGE 0x0097 ERROR: No Disconnect Complete from L3 upon PURGE

See Programmable Protocol Language.
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.
Protocol layer of the CSP.
Public Switched Telephone Network