Real-time Transport Protocol (RTP) – a streaming media
RFC 1889 and RFC 1890 cover the
The RTP provides features for real-time
As part of its specification, the RTP Payload Type field includes the encoding scheme that the media gateway uses to digitize the voice content. This field identifies the RTP payload format and determines its interpretation by the CODEC in the media gateway. A profile specifies a default static mapping of payload type codes to payload formats. These mappings represent the International Telecommunication Union (ITU) G series of encoding schemes.
With the different types of encoding schemes and packet creation rates, RTP packets can vary in size and interval. Administrators must take RTP parameters into account when planning voice services. All the combined parameters of the RTP sessions dictate how much