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
Data types and constants in primitives
User rate values
Service values
Number type values
Plan values
Screening indicator values
Redirecting reason values
Location values
UUI protocol discriminator values
Signal values
Network-provided clearing cause values
Clear code values
Facility code values
Action code values
Mode code values
Error cause values
Progress description values
Charging type values
Endpoint ID values
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
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