Welcome
Terminology
Using WebHelp
NMS ISDN Messaging API overview
Integrated Services Digital Network (ISDN)
ISDN functional devices and reference points
ISDN carriers
NMS ISDN software
NMS ISDN software components
Other components
Developing an NMS ISDN application
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
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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