2.2.3 RTCP Probe Packet
The RTCP probe packet MUST be a simple (noncompound) SR packet with zero report blocks. This packet is used as the first packet of an RTCP packet pair for bandwidth estimation purposes.
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The RTCP probe packet MUST be a simple (noncompound) SR packet with zero report blocks. This packet is used as the first packet of an RTCP packet pair for bandwidth estimation purposes.