4.17.5.1. Attributes of SipProxy

media (complex, rw:r)
Default:
Policy hash implementing media type filtering, indexed by the media type (as a string, e.g.: audio). See Section 4.17.1.4, Configuring SIP policies for details.

permit_rtp_zones (complex, rw:r)
Default:
A comma-separated list of zone pairs that are permitted to exchange voice or video streams (e.g.: (("internet", "intranet"),)). This option replaces the DAC decision (which is unavailable here, since RTP streams are forwarded on the kernel level). NOTE: this is a two-way connection between the zones.

rtp_endpoint_rewrite_nat_policy (unknown, rw:r)
Default:
Reference to an existing NAT policy that rewrites RTP endpoints from internal to external addresses. The policy is called for all messages containing an SDP part, since those may also contain addresses of the endpoints.