[cisco-voip] outbound only FXO

[Wes Sisk]

Robert,

If you don't want to allow inbound calls simply do not configure a plar 
destination.  Since these are FXO there is no method of receiving called 
party number so the call will not route to any destination.   There is a 
possible toll fraud issue there if your config allows an external user 
to draw dialtone and then enter any digits to dial a destination.

Another option would be to PLAR the ports to an invalid number. 

/Wes

Robert Singleton wrote:
> Most of my branch offices are pure VoIP, with no local PSTN gateway at
> all. Some of the more critical branches would like to have a couple of
> POTS lines connected to FXO ports and SRST configured, which is in
> itself fairly easy. The trouble is that we'd like to use existing lines
> that are otherwise only used for the burglar alarm or credit card
> machine. As such, I do not want the gateway to answer these lines except
> in fallback mode. I though setting the ports as "Outbound" in Gateway
> Configuration in CCM would do this. Unfortunately, the gateway still
> picks up the line, but now it gives the caller one ring then reorder
> because it (obviously) doesn't know where to send a caller on an
> "Outbound" line.
>
> Any ideas?
>
> I am using 2811's configured with VIC2-4FXO cards, running IOS
> 12.3(14)T7, with loop start CO lines.
>
> Thanks!
>
> Robert
>
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