>The usage of D(15) causes Asterisk to produce RTP on its own. Without it, >it merely forwards RTP. If a NAT/firewall requires media to be sent before >allowing media in, then you'll have no media flow. You can use the >"rtpkeepalive" option to have the RTP stack produce keepalive packets, >which will then open the NAT/firewall.
-- Hi Josh - Thanks - I have also turned off the firewall with "systemctl stop firewalld". Did not make a differernce. I am not at the site to change the to rtpkeepalive - will try that monday. Jerry
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