System information

require (modules.conf), 77
requirements, 639–662
environment, 649–653
hardware, 26
Linux, 662
phones, 657–662
servers, 641–649
telephony hardware, 653–657
residential option (dundi.conf), 506
resource library, 25
resource modules, 21
res_agi (asterisk.conf), 75
res_calendar_ews module, 399
res_config_mysql addon module, 23
res_ldap.conf, 437
res_odbc
configuring to allow Asterisk to connect
through ODBC, 352
res_odbc.conf, 382
res_snmp, 551
res_snmp.conf, 553
retry option (queues.conf), 276
returning from a GoSub() subroutine, 210
review option (voicemail.conf), 164
ringdelay option (sla.conf), 328
ringer, 598
ringinuse option (queues.conf), 264, 280
RINGNOANSWER event, 299
ringtimeout option (sla.conf), 327, 328
RJ45 connection, 185
robbed-bit signaling, 612
RSVP (Reservation Protocol), 631
rtautoclear option (sip.conf), 374
rtcachefriends option (sip.conf), 374
RTP multicast, 233
rtsavesysname option (sip.conf), 374
rtupdate option (sip.conf), 374
rungroup (asterisk.conf), 74
runuser (asterisk.conf), 74
S
s (Page() application), 230
s (VoiceMail() application), 170
s extension, configuring, 143
safeshutdown option (cdr.conf), 530
safe_asterisk script, 56
same (=>) operator, 112
sample configuration files, 108
sampling resolution and rate, digital telephony,
604
savecallsin option (agents.conf), 282
SAY ALPHA AGI command, 483
SAY DATE AGI command, 484
SAY DIGITS AGI command, 484
SAY NUMBER AGI command, 484
SAY TIME AGI command, 484
saycid option (voicemail.conf), 163
sayduration option (voicemail.conf), 163
saydurationm option (voicemail.conf), 163
scalability, distributed device states, 309
scams, NANP and toll fraud, 127
scanning for valid accounts, 565
SCCP (Skinny Client Control Protocol), 625
scheduleronly option (cdr.conf), 530
scheduling calls between two participants,
403–405
screen size, curses interface, 60
scripts
ast_tls_cert command, 150
configure script, 63
external scripts and databases, 355
make menuselect, 63
safe_asterisk script, 56
SCTP (Stream Control Transmission Protocol),
630
searchcontexts option (voicemail.conf), 164
secret (sip.conf), 93, 97
secret option (jabber.conf), 420
secret option (manager.conf), 462
secretpath option (dundi.conf), 506
secure passwords, 94
Secure RTP (see SRTP)
security, 256–259, 565–576
Asterisk network APIs, 572
authentication, 567
dialplan, 571
distributed denial of service attacks, 258
encrypted media, 571
Fail2ban, 567–570
configuring, 569
installing, 568
H.323, 624
IAX, 620
IAX2 denial of service, 573
information on Asterisk wiki, 110
as an ongoing process, 259
other risk mitigation, 574
688 | Index