Answer() — Answers a channel, if it is ringing
Causes Asterisk to answer the channel if it is currently ringing. If the current channel is not ringing, this application does nothing.
It is usually a good idea to use
Answer() on the channel before calling any
other applications, unless you have a very good reason not to. Most
applications require that the channel be answered before they are
called, and may not work correctly otherwise.
0 unless it tries to
answer the channel and fails.
exten => 123,1,Answer() exten => 123,2,Wait(1) exten => 123,3,Playback(tt-weasels)