22 Chapter 3 Configuring Your IP1200C
If you feel that the remote party’s voice is too soft or too loud, you may raise or lower your IP1200C’s Fixed TX
Gains. At the prompt
Select item to setup (1-10, press ESC to exit):
, input <5> or <7> depending on your port
interface and press ENTER to edit. Select a level from -20 to 20. Press ENTER to save. The default Fixed TX Gains
value for FXO is 0 and for FXS it is -3.
8) VAD Level
Silence or pause, as an interval during a conversation, is transmitted over the network like other voice packet.
IP1200C provides Voice Activity Detection (VAD) to send silence indicator packet instead of full packets to reduce
the traffic. At the prompt
Select item to setup (1-10, press ESC to exit):
, input <8> and press ENTER to edit. Select
a level from 0 to 8. Press ENTER to save. The default setting is 3. It means after detecting the voice level below 3, it
is deemed, as silence and IP1200C will send silence indicator instead of full packets.
Note:
If you set the VAD level to be 0, any sound including silence will be transmitted. The VAD function will not
be enabled.
9) DTMF Level and 10) DTMF Length
When local PSTN is not in good quality, raise the DTMF level or length to get a better transmission quality. At the
prompt
Select item to setup (1-10, press ESC to exit):
, input <9> and press ENTER to edit. Select a level from 1 to
5. Press ENTER to save. The default value is 2. At the prompt
Select item to setup (1-10, press ESC to exit):
, input
<10> and press ENTER to edit. Select a level from 0 to 2. Press ENTER to save. The default value is 100 ms.
Upgrade Software On-line
This function allows you to download the latest software version through the Internet to your IP1200C. Before you
download the latest software version, be sure your IP1200C can get connected to the public Internet.
Step 1 At the prompt displays
Select the option to setup:
, input <18> to download the latest software version.
Step 2 IP1200C will connect to DSG to download the latest software version automatically. The download
process might take several minutes.
Step 3 After the prompt displays
Upgrade Complete!
and ask
Do you want to reboot now (y/n)?
Input <y> to
reboot the system so that your IP1200C can run the latest program. You can also choose to reboot later by
input <n>.
Prompt example:
Select the option to setup: 18
Upgrade may take several minutes, please wait…
Connecting Download Server…
Downloading
Image...
100%
Download
Completed!
Upgrading...
Upgrade
Completed!
You must reboot your system to run the program upgraded.
Do you want to reboot now (y/n)? []
Note:
When there is no new version available, after you upgrade the IP1200C, the prompt will show “
Version is
up-to-date
! “
Exit Configuration
After you complete the setting of your IP1200C, you can exit with or without saving the new setting.
At the prompt displays Select the option to setup:, input <20> to save all the settings or input <21> to exit without
save and then press ENTER. You will be disconnected and exit.
Restoring to Default Settings
Summary of Contents for IP1200C
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