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Table 2-1. Popular dialplan applications |
Name |
app_authenticate |
app_cdr |
app_chanspy |
app_confbridge |
app_dial |
Purpose |
Compares dual-tone multifrequency (DTMF) input against a provided string (password) |
Writes ad hoc record to CDR |
Allows a channel to listen to audio on another channel |
Provides conferencing |
Used to connect channels together (i.e., make phone calls) |
app_directed_pickup Answers a call that’s ringing at another extension |
2 This is a command that is available as part of the installation process. We will discuss the use of menuselect in |
the installation chapter. |
Modules |
| |
11 |
Name |
app_directory |
app_dumpchan |
app_echo |
app_exec |
app_mixmonitor |
app_originate |
app_page |
Purpose |
Presents the list of names from voicemail.conf |
Dumps channel variables to Asterisk command-line interface (CLI) |
Echos received audio back to source channel (can be helpful in demonstrating latency) |
Contains Exec(), TryExec(), and ExecIf(): executes a dialplan application |
conditionally |
Records both sides of a call (transmit and receive) and mixes them together into a single file |
Allows dialplan logic to originate a call (as opposed to a call coming in on a channel) |
Creates multiple audio connections to specified devices for public address (paging) |
app_parkandannounce Enables automated announcing of parked calls |
app_playback |
app_playtones |
app_queue |
app_read |
app_readexten |
app_record |
app_senddtmf |
app_stack |
app_stasis |
app_system |
app_transfer |
app_voicemail |
app_while |
Plays a file to the channel (does not accept input) |
Plays pairs of tones of specified frequencies (DTMF mostly) |
Provides Automatic Call Distribution (ACD) |
Requests input of digits from callers and assigns input to a variable |
Requests input of digits from callers and passes call to a designated extension and context |
Records received audio to a file |
Transmits DTMF to calling party |
Provides GoSub(), GoSubIf(), Return(), StackPop(), LOCAL(), and |
LOCAL_PEEK() |
Passes call control to an ARI application—many Asterisk developers use this one application, |
and from there handle all the rest of their development outside of the Asterisk dialplan |
Executes commands in a Linux shell |
Performs a transfer on the current channel |
Provides voicemail |
Includes While(), EndWhile(), ExitWhile(), and ContinueWhile(); provides |
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