RTP (contd)
RTP services: payload type identification, sequence numbering, timestamping, delivery monitoring, & optional mixing/translation. UDP for multiplexing and checksum services
RTP does not provide: mechanisms to ensure quality-of-service, guarantee delivery or prevent out-of-order delivery or loss.
- RTP sequence numbers allow receiver to reconstruct the sender's packet sequence, or to determine the proper location of a packet, eg, in video decoding, without necessarily decoding packets in sequence.