How can I force Asterisk to drop any RTP packets going to the extension, until he will not get at least one RTP packet from that extension?
Let’s say Alice is calling Bob, so I want Asterisk to drop any RTP packets from Asterisk to Alice, until she will send the first RTP packet to the Asterisk. As far as I understand the ‘direction’ parameter in the SDP body should do that, but for some reason is not working in my case. I do have the following parameter in the INVITE coming from Alice, but seems that Asterisk is ignoring it.
Is there anything else to do to have this working?