Chapter 4 Gateway Configuration
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Extension Number
: The extension number will be displayed automatically
based on your settings under “CO Line Extension Base”. You may also
change the extension number here.
Description
: Input the telephone number or other information for this
port.
Enable
: For maintenance purpose, you may need to temporarily disable
some channels. Click the “Enable” check box to enable the channel or
uncheck to disable it.
CODEC
: Choose the preferred CODEC from PCM, G.723.1 or G.729
supported by InterPBX Communication System. PCM CODEC compresses
and decompresses voice conversation to 64 Kbps providing the best speech
quality but consumes larger bandwidths. G.723.1 CODEC uses 5.3/6.3
Kbps, the less bandwidth from the three choices but may result in poorer
call quality and finally G.729, which uses 8 Kbps.
DID (Direct Inward Dialing)
: When selected, incoming calls will be
connected to extensions directly in stead of been picked up by Auto
Attendant. This function is available when you have subscribed the DID
service provided by your carrier. When you would like to set a direct line
between two PBXs connected by Tie Line, you may also enable this
function.
Strip Prefix Digit:
When the length of the number sent by DID is longer
than your extension numbers, set the digit that needs to be removed. For
example, if the DID prefix and adding number is 660x-xxxx, but you have
4-digit extension number, set “1” to delete the first digit sent by your
carrier. The default value is 0.
Fax Ext. Number:
The InterPBX System can detect the fax signal of CO
Line. Please enter the extension number of your fax machine here. When
