| AGI( )
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Executes an AGI-compliant application
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[E]AGI(program[,arguments])
Executes an Asterisk Gateway Interface-compliant
program on the current channel. AGI programs allow
external programs (written in almost any language) to control the
telephony channel by playing audio, reading DTMF digits, and so on.
Asterisk communicates with the AGI program on STDIN and
STDOUT. The specified arguments are passed
to the AGI program.
The program must be set as
executable in the underlying filesystem. The program path is
relative to the Asterisk AGI directory, which by default is
/var/lib/asterisk/agi-bin/.
If you want to run an AGI when no channel exists
(such as in an h extension), use the DeadAGI( )
application instead. You may want to use the FastAGI( )
application if you want to do AGI processing across the
network.
If you want access to the inbound audio stream
from within your AGI program, use EAGI( ) instead of
AGI( ). Inbound audio can then be read in on file
descriptor number three.
Returns -1 on hangup or if the program
requested a hangup, or 0 on non-hangup exit.
; call the demo AGI program
exten => 123,1,AGI(agi-test)
exten => 123,2,EAGI(eagi-test)
See Also
DeadAGI( ),
FastAGI( ),
Chapter 9
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