Draytek Vigor IPPBX 2820 Series User Manual page 90

Available settings are explained as follows:
Item
Tone Settings
Volume Gain
MISC
Description
Region - Select the proper region which you are located.
The common settings of Caller ID Type, Dial tone,
Ringing tone, Busy tone and Congestion tone will be
shown automatically on the page. If you cannot find out a
suitable one, please choose User Defined and fill out the
corresponding values for dial tone, ringing tone, busy tone,
congestion tone by yourself for VoIP phone.
Also, you can specify each field for your necessity. It is
recommended for you to use the default settings for VoIP
communication.
Mic Gain (1-10)/Speaker Gain (1-10) - Adjust the volume
of microphone and speaker by entering number from 1- 10.
The larger of the number, the louder the volume is.
Dial Tone Power Level - This setting is used to adjust the
loudness of the dial tone. The smaller the number is, the
louder the dial tone is. It is recommended for you to use the
default setting.
Ring Frequency - This setting is used to drive the
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VigorIPPBX 2820 Series User's Guide