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Home > Archive > Voice over IP Cisco > September 2006 > outbound only FXO
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| Robert Singleton 2006-09-24, 7:12 pm |
| 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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| Ryan Ratliff 2006-09-25, 1:11 pm |
| Why add them to CM at all if they are only to be used in SRST mode?
-Ryan
-----Original Message-----
From: cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Robert Singleton
Sent: Sunday, September 24, 2006 5:12 PM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] outbound only FXO
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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| Wes Sisk 2006-09-25, 1:11 pm |
| 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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> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
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