I would like to know if it is possible for asterisk to establish a three-way call on an analog line. Typically, I would like asterisk to call 2 numbers, with the same telephonic line, and connect them together. For a human, this is already possible on the line I'm using, by following those steps: pick up and dial the 1st number, wait for it to answer, press R (the hook flash) and compose the 2nd number, wait for answer, press R and then 3 so everybody is now in the same conversation.  This is interesting here because the line I'm talking about can make international calls to many destinations without extra charge, so I can use it (as a relay) to call from one country (when travelling) to another without having to ruin myself. Can asterisk reproduce these steps automatically, and do you know how?
Can asterisk set-up a three-way call on an analog (classic) line?
asterisk