| Disable the dual mode to allow only IP calls. However, it will switch to | |
| PSTN network when blackout. | |
Dualmode Prefix | Set the switch key which allows you to switch between PSTN call and IP | |
call when Dual Mode is enabled. | ||
Answer | Enter a number from 0 through 60 to set the entries of the seconds | |
before the phone answer the call automatically or forward the call. To | ||
| disable auto answer function, please set this parameter as 0. | |
Forward Number | When any forward function is checked, enter the phone number to be | |
forwarded in this field. | ||
FWD Noanswer | Forward calls when nobody answers the calls. Please enter the phone | |
number to be forwarded in the Forward Number field, and enter the ring | ||
| period in the Answer field. | |
FWD Always | Forward all calls. Please enter the phone number to be forwarded in | |
the Forward Number field. | ||
| ||
FWD Busy | Forward calls if busy. Please enter the phone number to be forwarded | |
in the Forward Number, and enter the ring period in the Answer field. | ||
|
6.4Audio Settings
|
| Audio Settings | |
| Fields | Description |
|
| VAD | Enable VAD (Voice Activity Detection) by checking this box. | |
| AGC | Enable AGC (Automatic Gain Control) by checking this box. | |
| AEC | Enable AEC (Acoustic echo canceller) by checking this box. | |
| Codec 1~5 | Set audio type by selecting options from the drop down list. The | |
| options are G.711u, G.711a, G.723.1, G.729, G.729 and GSM. | ||
|
| ||
|
| Set audio frames in RTP package. |
|
| Audio Frames | G.723.1 collect packets every 30ms, and G.729 collect packets every | |
| 10ms. If the Audio Frames is set as 1, the packets will be sent out | ||
|
| every collection. If the Audio Frames is set as 2, the packets will be | |
|
| sent out every two collections. |
|
| G.723.1 High Rate | With G.723.1 selected in audio type drop down list, enable G.723.1 high | |
| rate (6.3K) by checking this box instead of data rate 5.3K. | ||
| Handset In | Set the volume of handset input. | The range is from 1 to 15. |
| Handset Out | Set the volume of handset output. | The range is from 1 to 31. |
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