Default Rtp/Rtcp/T.38 Port Allocation - 3Com VCX V7122 User Manual

Payload Type Description
39 G.727 16 kbps
40 G.727 24-16 kbps
41 G.727 24 kbps
42 G.727 32-16 kbps
43 G.727 32-24 kbps
44 G.727-32 kbps
45 G.727 40-16 kbps
46 G.727 40-24 kbps
47 G.727 40-32 kbps
49 NetCoder 4.8 kbps
50 NetCoder 5.6 kbps
51 NetCoder 6.4 kbps
52 NetCoder 7.2 kbps
53 NetCoder 8.0 kbps
54 NetCoder 8.8 kbps
55 NetCoder 9.6 kbps
56 Transparent PCM
96 DTMF relay per RFC 2833
102 Fax Bypass
103 Modem Bypass
104 RFC 2198 (Redundancy)
105 NSE Bypass

Default RTP/RTCP/T.38 Port Allocation

Table 43 Default RTP/RTCP/T.38 Port Allocation
Channel Number RTP Port
1 6000
2 6010
3 6020
206
Basic Packet Rate [msec]
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
Same as channel's voice coder.
RTCP Port T.38 Port
6001 6002
6011 6012
6021 6022
3Com VCX V7122 SIP VoIP Gateway User Manual