Welcome
Terminology
Using WebHelp
NMS ISDN Messaging API overview
Messaging API programming model
Initializing a Messaging API application
Call control (ACU configuration)
Data link operations (LAPD)
Messaging API data structures
Function reference
Message primitives
    Overview of message primitives
    LAPD primitives
    ACU primitives summary
    Using the ACU message reference
    ACU_ALERT_IN
    ACU_ALERT_RQ
    ACU_CALLID_IN
    ACU_CALL_PROC_IN
    ACU_CALL_PROC_RQ
    ACU_CLEAR_CO
    ACU_CLEAR_IN
    ACU_CLEAR_RQ
    ACU_CLEAR_RS
    ACU_CONN_CO
    ACU_CONN_IN
    ACU_CONN_RQ
    ACU_CONN_RS
    ACU_D_CHANNEL_STATUS_IN
    ACU_D_CHANNEL_STATUS_RQ
    ACU_DIGIT_IN
    ACU_DIGIT_RQ
    ACU_ERR_IN
    ACU_FACILITY_IN
    ACU_FACILITY_RQ
    ACU_NOTIFY_IN
    ACU_NOTIFY_RQ
    ACU_PROGRESS_IN
    ACU_PROGRESS_RQ
    ACU_RESTART_IN
    ACU_SERVICE_CO
    ACU_SERVICE_IN
    ACU_SERVICE_RQ
    ACU_SETUP_ACK_IN
    ACU_SETUP_REPORT_IN
    ACU_TRANSFER_CO
    ACU_TRANSFER_RQ
Data types and constants in primitives
isdndemo: Layer 3 call control
lapddemo: LAPD demonstration program
dectrace: Stack traffic analysis tool
itrace: Stack traffic analysis tool
Events, reasons, and errors
Parameters
Sending and receiving raw Q.931 data
Sending and receiving PCS-user information
Timers
NFAS and D channel backup
Modifying the NSF IE
Encoding and decoding the Precedence Level IE