Section 24: Connection Setup
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ieline
Page 232
T E C H N O L O G Y
24.16.
Failover Profile in Detail
As previously mentioned, the Connection Manager will handle multiple
connections, such as dual channel ISDN or POTS, or a POTS and an ISDN
connection together. The codec can reconnect a lost connection either by using
the
Auto reconnect
or
Automatic Redial
functions within the codec.
It is also possible to purchase the optional failover (
Failover Profile
) solution to
create a backup program feed. An example of this could be an ISDN connection
with one or two ‘B’ channels in use and a POTS connection that can be in
Standby
mode.
Failover Profile
is a very advanced function and many users will not need to use
it. Essentially it allows the user to create backup profile connections to ensure the
continuity of critical signals such as main program links. For this function to work
satisfactorily, you must ensure that matching configuration files (i.e. a POTS
backup for an ISDN connection) are loaded on both the master and slave codecs.
These files contain matrix, profile and phonebook information. The following
information will explain reconnecting lost connections in detail and help you to
understand what the best reconnection solution for your situation is.
24.16.1.
How Can We Manage Connections?
To understand how reconnecting and how failover operates, it is useful to
know how the following functions operate within
T
ieline
G
3
codecs:
Automatic Redial
;
Failover profile
; and
Auto reconnect
.
If you are programming a failover connection, it is important understand how
the codec will operate if a main connection is lost. The codec will:
First look at the
Automatic Redial
settings and if the codec is
programmed to redial a certain number of times, it will attempt to
redial the previous connection.
If
Automatic Redial
is not set, or the redials have completed, then the
codec will look to see if a
Failover profile
has been programmed
within the codec’s main connection profile. If programmed, it will
attempt to activate the
Failover profile
settings.
If
Failover profile
is disabled, the codec will redial the lost connection
if
Auto reconnect
is enabled within the codec.
Now that you have an understanding of the connection prioritization
procedure within the codec, we can look at how to set a failover connection
in more detail.
Important note:
If you are using the
Failover profile
function with your codec, we recommend
that you don’t activate the
Auto reconnect
function as they will conflict with
each other.