S-Series IP PBX Administrator Guide
48
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.
2) Advanced
Table 5-17 PRI Trunk Configuration Parameters - Advanced
PRI Signaling
Facility-based
ISDN
Supplementary Services
Decide whether to enable transmission of facility-based ISDN
supplementary services (such as caller name from CPE over
facility) or not. The default is checked.
Reset Interval
This sets the time in seconds between restart of unused B
channels. Set the interval to Never if you don't like the channel
to restarts. The default is Never.
PRI Indication
Tells how PBX should indicate busy and congestion to the
switch/user. The options are:
Inband:
PBX
plays
indication
tones
without
answering; not available on all PRI/BRI subscription
lines;
Out-of-Band: PBX disconnects with busy/congestion
information code so the switch will play the indication
tones to the caller.
The default is Out-of-Band.
Enable DNIS
Dialed Number Identification Service is a telephone service
that enables a company to identify which telephone number
was dialed. Users could configure DNIS to allow the IP
phones to display which trunk is passing the call.
DID Number
This number is used to identify which line of the trunk is
passing the call.
DNIS Name
A name for this DNIS, when a call reaches the selected trunk,
the name will be displayed on the ringing phone.
DialPlan
Calling Party Numbering Plan
Select the Calling Party Numbering Plan.