Advanced |
Codec
The codec used for each call will be negotiated with the peer party before each session, and therefore many codecs will not be included in your default configuration. The default codec is G.729A, it occupies little bandwidth while maintaining good voice quality.
If your upstream speed is only 64Kbps, using G.711_A codec is not recommended. It is better to have at least 256Kbps upstream if you would like to use G.711_A.
Priority | There are five priorities for you to configure the codec priority in |
| the order you preferred. Priority 1 means the first priority and |
| priority 5 means the last. |
Codec | Select the codec type from the |
Packetization | Select the length of the digital voice segment that each packet |
Time | holds. The default is 20 millisecond packets. Selecting 10 |
| millisecond packets enhances the voice quality, as less |
| information is lost due to packet loss, but doubles the load on |
| the network traffic. |
DTMF | Select the method of DTMF tone generation from the drop- |
| down list. |
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