434 V7122 GatewayUser GuideAPPENDIX E: RTP/RTCP PAYLOAD T YPESAND P ORT ALLOCATIONRTP Payload Types are defined in RFC 3550 and RFC 3551. We have added new payloadtypes to enable advanced use of other coder types. These types are reportedly not used byother applications.Payload Types Defined in RFC 3551Table 93 Packet Types Defined in RFC 3551Payload Type Description Basic Packet Rate [msec]0 G.711 μ-Law 10,202 G.726-32 10,203 GSM-FR 204 G.723 (6.3/5.3 kbps) 308 G.711 A-Law 10,2012 QCELP 2018 G.729A/B 20200 RTCP Sender Report Randomly, approximately every 5 seconds (whenpackets are sent by channel)201 RTCP Receiver Report Randomly, approximately every 5 seconds (whenchannel is only receiving)202 RTCP SDES packet203 RTCP BYE packet204 RTCP APP packetDefined Payload TypesTable 94 Defined Payload TypesPayload Type Description Basic Packet Rate [msec]3 MS-GSM 403 GSM-EFR 20
