System information

controlling calls based on calendar
information, 407
triggering calendar reminders, 402–406
writing call information to a calendar, 408–
411
CALENDAR_BUSY() dialplan function, 407,
411
CALENDAR_EVENT() dialplan function, 403
CALENDAR_QUERY() function, 411
CALENDAR_QUERY_RESULT() function,
411
call centers, 489
call centers, inbound and outbound, 261
call detail records (see CDRs)
call information, writing to a calendar, 408–
411
call monitoring for law enforcement agencies,
593
call option (manager.conf), 463
call parking, 217
call progress tones, 194
call token support, 573
call-limit option (sip.conf), 306
callback option (voicemail.conf), 164
callcounter option (sip.conf), 273, 306
caller ID
analog circuits, 194
internationalization, 189
SLA, 328
CALLERID() function, 432
calling
GoSub() subroutines from the dialplan,
208
macros from the dialplan, 205
calls
accepting calls to your system, 240–246
receiving on your ITAD, 256
CAS (Channel Associated Signaling), 612
cc option (manager.conf), 463
CCITT (Comité consultatif international
téléphonique et télégraphique), 247
CDR modules, 15
cdr option (manager.conf), 463
CDR() dialplan function, 375, 410
CDR-Stats, 564
cdr.conf, 529
CDRs (call detail records), 527–537
backends, 530–536
cdr_adaptive_odbc, 530
cdr_csv, 532
cdr_custom, 532
cdr_manager, 533
cdr_mysql, 534
cdr_odbc, 534
cdr_pgsql, 534
cdr_radius, 534
cdr_sqlite, 535
cdr_sqlite3_custom, 535
cdr_syslog, 535
cdr_tds, 536
caveats, 537
cdr.conf, 529
contents, 527
dialplan applications, 529
example call detail records, 536
relational databases, 375
testing, 69
web interfaces, 563
cdr_adaptive_odbc module, 16, 530
cdr_adaptive_odbc.conf, 377, 531
cdr_csv module, 16, 532
cdr_custom module, 16, 532
cdr_manager module, 16, 533
cdr_mysql addon module, 23
cdr_mysql module, 534
cdr_odbc module, 16, 534
cdr_pgsql module, 16, 534
cdr_radius module, 16, 534
cdr_sqlite module, 16, 535
cdr_sqlite3_custom module, 16, 535
cdr_syslog module, 16, 535
cdr_tds module, 16, 536
CEL (Channel event logging), 537–549
backends, 540–546
cel_custom, 543
cel_manager, 544
cel_odbc, 541
cel_pgsql, 545
cel_radius, 545
cel_sqlite3_custom, 546
cel_tds, 546
cel.conf, 540
channel event contents, 539
channel event types, 537
dialplan applications, 540
example channel events, 546–549
blind transfer, 548
single-party call, 547
668 | Index