| http://www.w3.org/ns/prov#value | - information may be transmitted ???out-of-band, such as extensions to the RTCP layer, as part of the DSR session control layer already used for SIP/SDP session initiation and control, and as part of any other suitable extensible mechanism (e.g., SOAP (or XML or pre-established messages) over SIP or HTTP (as discussed below), HTTP, as a separate point-to-point connection (sockets), or as meta-inform
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