Page 477 - Asterisk™: The Future of Telephony

APPENDIX C

AGI Reference

ANSWER

Answers the channel (if it is not already in an answered state).
Return values:

-1
Failure
0
Success

CHANNEL STATUS

CHANNEL STATUS [channelname]

Queries the status of the channel indicated by channelname or, if no channel is specified,
the current channel.
Return values:

0
Channel is down and available
1
Channel is down, but reserved

2
Channel is off-hook
3
Digits have been dialed

4
Line is ringing
5
Line is up

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