Is RFC6263 (RTP / RTCP port keepalive) supported?

[daviddean99]

I have a user who is behind a firewall with very low timeouts that cannot be changed.

When the users RTP media stream is inactive the firewall closes the ports. Incoming packets are then rejected.

I need to enable RFC6263 to periodically send packets on the RTP / RTCP (and preferably application) ports as defined in the SDP to keep the connection alive.

I searched the code and couldn't find any reference to RFC6263. Is it supported by Doubango, and if so how do I turn it on/configure it?

https://tools.ietf.org/html/rfc6263