Remote Annex 6300 Supplement to the Remote Annex Administrator’s Guide for UNIX
Chapter 3 Configuring the PRI Interface, Global Ports, and Sessions
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Book A
ISDN Sessions and Session Parameter Blocks (SPBs)
An ISDN PRI session begins when the RA 6300 accepts a call and ends
when the call terminates. You define how the RA 6300 handles calls (e.g.,
accepts or rejects them) by creating one or more Session Parameter Blocks
(SPBs). You must define at least one SPB for any calls to be handled.
You define SPBs in the pri section of the Annex configuration file on the
host you use to download RA 6300 software. By default, the file is named
config.annex and is located in the /usr/annex directory.
Each SPB in the pri section must be defined within begin_session and
end_session fields. The begin_session field allows you to name an SPB
within the configuration file.
An SPB consists of three sections:
•
An optional section presenting call setup criteria. If the SETUP
message that starts an incoming call meets all of these criteria,
or if no criteria are specified, the call is handled by this SPB.
•
A mandatory call handling section that manages all calls
meeting the SPB setup criteria. This section must at least specify
an action to be taken for the call.
•
An optional section containing per-session port parameter
settings. All global port parameters can be overridden (as
appropriate for the specific type of call) in this SPB section. If
you do not need to change the value of a global port parameter,
do not specify it here – i.e, if no parameter values are special to
this session, you can omit this section of the SPB.
Summary of Contents for 6300
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