I’m currently using early media together with a door intercom system, which seems to behave a bit weirdly.
In short: How could I establish a connection to another local number (basically Dial() ) without signaling the Answer()-Signal to the intercom? Theoretically one way audio would be enough, the intercom signals with DTMF tones which I seem to be able to read.
There is no current mechanism in Asterisk to do such a thing as it’s counter to what most people would want to do. There would have to be code modifications or an addition to block it.