S-Series IP PBX Administrator Guide
45
1) Basic Settings
Table 5-13 PRI Trunk Configuration Parameters
PRI Signaling
Trunk Name
Give this trunk a name to help you identify this trunk.
Interface Type
Specify the interface type according to the trunk specification.
Signaling
Specify the Signaling type according to the direction provided by
your service provider.
Framing
Choose the frame format for this trunk.
When the Interface Type is E1, the options are:
·
Enable CRC4
·
Disable CRC4
CRC4 is a method of checking for errors in data transmitted on E1
trunk lines.
When the Interface Type is T1 or J1, the options are:
·
ESF
·
D4
Line Code
Choose the line code for this trunk.
When the interface Type is E1, the options are:
·
HDB3
·
AMI
When the Interface Type is T1 or J1, the options are:
·
B8ZS
·
AMI
Codec
Choose the codec for this trunk.
Echo Cancellation
This option enables or disables echo cancellation. The default is
checked.
D Channel
Set the channel used to carry control information and signaling
information.
When the Interface Type is E1, enter a channel number from 1 to
31.
When the Interface Type is T1 or J1, enter a channel number from 1
to 24.
Switch Type
Configure the switch type according to the direction provided by
your service provider.
Signaling Role
Specify whether this interface will act like the user or the network.
The default is User.
Overlap Dial
Define whether the system can dial this switch using overlap digits
or not. If you need Direct Dial-in, then enable this option. The default
is Disable.
Table 5-14 MFC/R2 Trunk Configuration Parameters
MFC/R2 Signaling
Trunk Name
Give this trunk a name to help you identify this trunk.
