pcmu 0
gsmfr 3
g723 4
dvi4 125
pcma 8
g722 9
cn 13
g729 18
ipcmwb 97
speex8 98
speex16 99
eg711u 100
eg711a 101
ilbc 102
isac 103
isaclc 119
isacswb 104
avt 106
g722_1_16 108
g722_1_24 109
g722_1_32 110
g722_1c_24 84
g722_1c_32 85
g722_1c_48 86
//sc3 111
amr 112
gsmefr 113
g726_16 115
g726_24 116
g726_32 121
red 117
g726_40 118
cn_wb 105
cn_swb32 126
g729_1 107
//g729d 123
amrwb 120
pcm16b 93
pcm16b_wb 94
pcm16b_swb32khz 95
//pcm16b_swb48khz 96
//mpeg4aac 122
silk8 80
silk12 81
silk16 82
silk24 83
melpe 124
