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Table Of Contents
qsig_source_party_nb_type field ........................................................................... 245
qsig_source_type_of_nb field................................................................................ 245
17. Sending and receiving raw Q.931 data....................................................... 247
Overview of Q.931 data ....................................................................................... 247
Creating transparent IEs ...................................................................................... 247
Transparent IE formatting rules .......................................................................... 248
Accessing and reading a Q.931 buffer .................................................................... 249
18. Sending and receiving PCS-user information ............................................. 250
PCS-user information elements ............................................................................. 250
Structure of user-PCS IEs .................................................................................. 250
Sending and receiving PCS information elements..................................................... 251
Example code................................................................................................... 252
19. Timers........................................................................................................ 253
Timer overview ................................................................................................... 253
France VN6 layer 3 timer defaults .......................................................................... 255
EuroISDN layer 3 timer defaults ............................................................................ 256
AT&T E10 layer 3 timer defaults ............................................................................ 257
Nortel DMS 100 layer 3 timer defaults.................................................................... 258
USA National ISDN 2 layer 3 timer defaults ............................................................ 259
Australian Telecom 1 layer 3 timer defaults ............................................................ 260
Hong Kong Telephone layer 3 timer defaults ........................................................... 260
INS-1500 NTT layer 3 timer defaults ...................................................................... 262
AT&T 4ESS layer 3 timer defaults .......................................................................... 263
Korean (and Taiwan) layer 3 timer defaults ............................................................ 263
QSIG layer 3 timer defaults .................................................................................. 265
20. NFAS and D channel backup....................................................................... 266
Non-facility associated signaling (NFAS) ................................................................. 266
Setting up and using NFAS ................................................................................... 267
NFAS groups and Hot Swap configurations ........................................................... 267
D channel backup ................................................................................................ 267
Setting up D channel backup.............................................................................. 268
Handling D channel failure .................................................................................... 268
21. Modifying the NSF IE ................................................................................. 270
NSF IE structure.................................................................................................. 270
NSF IE fields ....................................................................................................... 270
net_id_type ..................................................................................................... 270
action.............................................................................................................. 270
serv_feature .................................................................................................... 271
param_fld ........................................................................................................ 272
Example ............................................................................................................. 272
22. Encoding and decoding the Precedence Level IE ........................................ 273
Precedence Level IE structure ............................................................................... 273
Precedence Level IE fields .................................................................................... 273
level ............................................................................................................... 273
lfb .................................................................................................................. 274
change ............................................................................................................ 274
coding_std ....................................................................................................... 274
domain............................................................................................................ 274
net-id.............................................................................................................. 274
Precedence Level IE examples .............................................................................. 274
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