淺談Asterisk的語音編碼(codec)
內容表格
沒有標頭目前 Asterisk 支援的語音編碼型式及比較表，如下表：
| Codec | Sampling Rate(KHZ) | Bandwidth(kbps) | Nominal Bandwidth(kbps) | License | Remarks |
| G.711 * | 8 | 64 | 87.2 | Open Source | |
| G.722 | 16 | 48/56/64 | ??? | Open Source | |
| G.723.1 | 8 | 5.3/6.3 | 20.8/21.9 | Proprietry | |
| G.726 | 8 | 16/24/32/40 | ?/47.2/55.2/? | Open Source | |
| G.729 | 8 | 8 | 31.2 | Patented | |
| GSM | 8 | 13 | Proprietry | ||
| iLBC | 8 | 15.2/13.3 | Free to use | ||
| Speex | 8/16/32 | 2.15-24.6(NB) 4-44.2(WB) | Open Source |
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