SIP FAQ : RTP Issues
	RTP FAQs are covered at http://www.cs.columbia.edu/~hgs/rtp. In particular, a common mistake is to assume that RTP mandates a certain packetization interval, e.g., 20 ms. This is *wrong*. While RFC 1890 recommends certain values and SDP allows to express a preference, implementations need to be able to handle all reasonable values. There is no constraint that G.711 or other sample-based formats is conveyed in multiples of a certain unit. Thus, an RTP packet with 123 samples of G.711 is perfectly legitimate and needs to be handled appropriately.
	[Append to This Answer]
	hgs@cs.columbia.edu
	2001-Apr-24 9:01pm

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