[Freeswitch-users] What is the difference between preAnswer and ring_ready?

[Max Bridgewater]

Hi,
Assuming an inbound call, I have trouble understanding what the supposed
difference between the following two set of instructions is:

session.execute("ring_ready");
session.set("set", "ringback=/home/ring.wav");

and

session.preAnswer();
session.streamFile("/home/ring.wav")

In practice, however, the first scenario doesn't work for me although the
example here suggests otherwise:
http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_ring_ready
Any idea?

Thanks,
Max.
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