*** THE MYSTERY BEHIND AUDIO ROUTING VARIABLES ***

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RLC-2 Audio routing variables:

Defining the system audio routing variables is accomplished using Command 
007.  This command lists the sources involved with executing commands.

Command 007 definitions:
Variable 00 define internal events.  Internal events are messages that are 
requested from the internal program.  You should never have to change this 
variable.  It defaults to 01, Port 1

Variable 01 defines serial events.  When commands are executed from the 
serial port the responses are routed to the serial port, along with any 
combination of radio ports.  This variable defaults to 01, Port 1.  If you 
enter a variable of 00, the messages will only be routed to the serial port 
and no other ports.

Variable 02 defines scheduler events.  This event is not used.  The scheduler 
events enter the routing variables to be used when the scheduler event is 
entered using Command 064.  You should never have to change this variable.  
It defaults to 01, Port 1

Variable 03 defines execution from Port 1.  This variable defaults to routing 
responses out only Port 1.  It defaults to 01.

Variable 04 defines execution from Port 2.  This variable defaults to routing 
responses out only Port 2.  It defaults to 02.

Variable 05 defines execution from Port 3.  This variable defaults to routing 
responses out only Port 3.  It defaults to 04.

Variable 06 defines execution from Port 4 (Autopatch).  This variable defaults 
to routing responses out only Port 4.  It defaults to 08.

Variable 07 defines execution from Port 5.  Because port 5 is a receive only 
port, its responses must be routed to a different port.  This variable 
defaults to routing responses out only Port 1.  It defaults to 01.

Variable 08 defines execution from the event table.  This variable is a 
master variable that overrides the audio routing variables that are entered 
with every event.  When this variable is set to 00, the audio routing 
information that is part of the event will be used.  If you change this audio 
routing variable to something other than 00, the value entered with 
Command 007 will contain the routing information.  It defaults to 00, use the 
audio routing information from the event tables events.

Variable 09..11 are not used

Event table audio routing definitions:
The event tables audio routing variables work similar to Command 007's 
variables with a few exceptions.

Exception 1:
     If the audio routing variable entered for an event is 00,  the audio 
     is routed to the source that executed the command.  If the serial port 
     executes a command with a routing variable of 00, the response is routed 
     out only the serial port.  If a DTMF channel executes the same command,
     the response will be routed out the DTMF's channel.

Exception 2:
     If the audio routing variable is 00, and a tone sequence is requested 
     from a courtesy beep message (Slots 016,017,108,019,020), the tone 
     information will be routed to all connected ports that are in a repeater 
     configuration.  This exception is only when a tone is generated.

Conclusion:
     Normal audio routing variables route to radio ports.  Event audio 
     routing is the same except you can assign a couple special cases that 
     give more flexible routing to commands.

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