Section 24: Connection Setup
T
ieline
Page 234
T E C H N O L O G Y
Tool
Box
software. This User Function will tell the codec to failover to a new
connection as it is programmed within the
Add/Edit Function
menu. In the
following example, the main connection is via an ISDN B channel and the
failover connection is POTS.
Figure 71: Simple Failover User Function
You will note that if audio streaming is deactivated for some reason on the
ISDN B1
connection, the codec
Connection Manager
is set to dial a POTS
connection via
POTS 1
. The number to dial is set to be phone number 30,
which has been programmed into the
Phonebook Editor.
This phone number
can have a POTS dialing profile associated with it so the codec will
automatically load the new profile when the user function is activated.
24.16.5.
Limitations of Simple Failover
The main limitation of simple failover via user functions is that the connection
is down for the period that it takes to redial a new connection. This can be
eliminated by using more complex failover methods, which are explained in
the following sections.
For more information on programming User Functions, please see the
Functions
menu section within this manual.
WARNING:
Please ensure that you don’t set
Automatic redial
or
Auto
reconnect
if you are creating a User Function as previously shown –
otherwise it will conflict with the Connection Manager settings.
