S-Series IP PBX Administrator Guide
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trunk lines.
When the Interface Type is T1 or J1, the options are:
· ESF
· D4
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
Choose the codec for this trunk.
This option enables or disables echo cancellation. The default is
checked.
2) Advanced
Table 5-17 PRI Trunk Configuration Parameters - Advanced
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.
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.
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.
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.
This number is used to identify which line of the trunk is
passing the call.
A name for this DNIS, when a call reaches the selected trunk,
the name will be displayed on the ringing phone.
Calling Party Numbering Plan
Select the Calling Party Numbering Plan.