424 3Com® VCX V7111 VoIP Gateway User GuideDefined Payload TypesTable 116 Defined Payload TypesPayload Type Description Basic Packet Rate [msec]96 RFC 2833 DTMF relay 20102 Fax Bypass 20103 Modem Bypass 20104 RFC 2198 (Redundancy) Same as channels voice coder.105 NSE BypassDefault RTP/RTCP/T.38 Port AllocationThe following table shows the default RTP/RTCP/T.38 port allocation.Table 117 Default RTP/RTCP/T.38 Port AllocationChannel Number RTP Port RTCP Port T.38 Port1 6000 6001 60022 6010 6011 60123 6020 6021 60224 6030 6031 60325 6040 6041 60426 6050 6051 60527 6060 6061 60628 6070 6071 60729 6080 6081 608210 6090 6091 609211 6100 6101 610212 6110 6111 611213 6120 6121 612214 6130 6131 613215 6140 6141 614216 6150 6151 6152
