Parameter Description
digitmap
—
Select this option, you can send the outgoing calls
without pressing # key under VoIP model
（
reserved
）
Dial Number
When the hotline feature is selected in the Use DialPlan field, this field
should contain the phone number you would like to dial automatically
each time when you pick up the handset.
LCD Menu Lock
This feature secures the phone settings if used in public places, such as
Internet cafés. Click the checkbox to enable this feature. Once the LCD
menu is locked, none of the phone settings will be accessible through the
LCD menu
Handset Input
Volume
Set the volume of handset input (ranges from 0 to 15 ),
default value:6
Handset Output
Volume
Set the volume of handset output (ranges from 12 to 22 ),
default value:16
Speaker Output
Volume
Set the volume of handset output (ranges from 12 to 22 ),
default value:14
4.4 Audio Configuration Parameters
Parameter Description
Audio Codec
1,2,3,4,5
Audio Codec X set the priority of the audio compression algorithm. Cocec
1 is the preferred codec, default value Audio Codec 1=G729, others are
backup codec modes, different system may choose different backup codec
mode. Available codecs are G.729, G.7231, gsm, G.711u, G711a.
Ring Type
Select appropriate ring type from the drop down list. If you select “not
disturb”, you will not hear ring when there is an incoming call.
Jitter Size
Type appropriate jitter size. The value range is 0-33 block.
VAD
Enable/disable VAD (Voice Activation Detection)
AGC
Enable/disable AGC (Automatic Gain Control)
AEC
Enable/disable AEC (Automatic Echo Control)
