<p></p>
<p>The docs state clearly:<br>
"auto-bridge - this flag an alternative to the “internal” and “external” flags in order to do automatic bridging between IPv4 on the "internal network" and IPv6 on the "external network". Instead of explicitly instructing the RTP proxy to select a particular address family, the distinction is done by the given IP in the SDP body by the RTP proxy itself. <strong>Not supported by Sipwise rtpengine</strong>."</p>

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