Coding
Coding method for this interface
Line
Build-out
Line build-out represents the length of the cable form the port on this gateway to the next device.
CRC4
Enable cyclic redundancy checking for error checking on line. CRC-4 support is required for all network switches in Europe, but
many older switches and PBXs don’t support it.
Signaling
It shows you what signaling the port uses.
Switch
Type
Only used for PRI
Description
An optional description of this interface to be used for reference only.
ISDN-PRI
Advanced: Interface Type
Figure 3-2-1 Advanced: Interface Type
Table 3-2-1Definition of Interface Type
Options
Definition
Echo Cancellation
Whether or not to enable echo cancellation on this line
RX Gain Whole number
-24 to 24 and multiple of 3
Gain for the rx (receive -into Asterisk)channel.Default:0.0
TX Gain Whole number
-24 to 24 and multiple of 3
Gain for the tx(transmit -out of Asterisk Asterisk)channel.Default:0.0
ISDN: Signaling