asterisk users - Sep 2017 - Discovering ring time immediately after call is answered

Hi.

Does anyone know of a way to find out the ring time of a call as soon as it has 
been answered (ie: without waiting for the call to be completed, when it's 
part of the standard CDR record)?

I'm looking for a way to place a call, wait for it to be answered, and then 
perform different actions (eg: bridge the call to another number) depending on 
how long it took for the call to be answered (eg: less than X seconds or more 
than Y seconds).

Anyone got any ideas (for any reasonable version of Asterisk)?


Antony.

-- 
I bought a book about anti-gravity.  The reviews say you can't put it down.

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