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152
channel configuration, 66
overview of, 64
PJSIP channel module, 67-71
hardphones, softphones, and ATAs, 62
overview of, 57
registering devices to Asterisk, 74
set provisioning and, 59
SIP and, 58
SIP dialogs occurring, 74
SIP endpoints, 57
telephone naming concepts, 60
testing device registration, 72
V
validation
new Asterisk system, 44
voicemail passwords, 133
variables
adding variables to dialplans, 99
channel variables, 98
concatenation of, 100
environment variables, 98
global variables, 97
inheriting channel variables, 100
purpose of, 96
referencing, 97
video conferencing, 206
voicemail
app_voicemail.so, 129
Comedian Mail, 129
drawbacks of, 129
features of, 130
storage backends
databases, 147
IMAP, 146
Linux filesystem, 146
validation of passwords, 133
voicemail dialplan integration
creating dial-by-name directories, 143
dialplans available, 139
standard keymap configuration, 142
VoiceMail() application, 139
VoiceMailMain() application, 141
voicemail to email, 144
voicemail.conf file
mailbox definition parts, 137
mailbox options, 138
mailboxes, 136
overview of, 130
sample file, 131
supplementary options, 134
[general] section], 132
[zonemessages] section, 135
VoIP (Voice over Internet Protocol)
chan_pjsip module for, 65
history of, 114
IP phones
dialplans, 152
IP versus analog phones, 151
setting tones on, 152
time displays, 152
non-numeric account names, 367
outside connectivity
configuring SIP trunks, 122-125
emergency dialing, 125
network address translation (NAT),
114-117
PSTN termination and origination, 118
remote firewall handling, 116
W
WAV file format, 253
WebRTC
additional resources, 349
configuring Asterisk for, 345
Cyber Mega Phone example, 347
future uses for, 1, 64, 380
purpose of, 343
recommendations for using, 344
wiki sites, 6
wiki.asterisk.org (Asterisk wiki site), 6
www.voip-info.org (Asterisk wiki site), 6