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tony at softins.clara....
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 Posted: Thu May 01, 2008 10:39 am Post subject: [asterisk-users] Digium PRI card hi-Z for sniffing? |
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Does anyone know if the Digium PRI cards can be configured or modified
to have a high-impedance input on the RX pair? I would be interested in
this in order to build a bi-directional PRI audio sniffer using two
E1/T1 ports per trunk to be monitored.
Cheers
Tony
--
Tony Mountifield
Work: tony at softins.co.uk - http://www.softins.co.uk
Play: tony at mountifield.org - http://tony.mountifield.org |
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aklists at mixdown.ca
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| Posted: Thu May 01, 2008 3:30 pm Post subject: [asterisk-users] Digium PRI card hi-Z for sniffing? |
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On May 1, 2008 11:39:52 am Tony Mountifield wrote:
| Quote: | Does anyone know if the Digium PRI cards can be configured or modified
to have a high-impedance input on the RX pair? I would be interested in
this in order to build a bi-directional PRI audio sniffer using two
E1/T1 ports per trunk to be monitored.
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I looked in to this exact thing several years ago, and while I do believe that
the hardware is capable of it (I don't have a card in front of me, but I
believe the T1 termination is done inside the QuadFALC), the driver does not
have this capability.
I don't think it would be impossible to add, but it would take some work, and
please keep in mind that this was a number of years ago that I did look at
this on the TE405P, so my memory may be a little hazy.
-A. |
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mendoza at tcc.com.pe
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| Posted: Thu May 01, 2008 11:50 pm Post subject: [asterisk-users] Digium PRI card hi-Z for sniffing? |
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Hi Tony,
http://www.voicetronix.com.au/openpri.htm
Never tested, though. We used the analogue boards for monitoring, so far.
Jorge
Tony Mountifield wrote:
| Quote: | Does anyone know if the Digium PRI cards can be configured or modified
to have a high-impedance input on the RX pair? I would be interested in
this in order to build a bi-directional PRI audio sniffer using two
E1/T1 ports per trunk to be monitored.
Cheers
Tony
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tony at softins.clara....
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| Posted: Fri May 02, 2008 4:26 am Post subject: [asterisk-users] Digium PRI card hi-Z for sniffing? |
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In article <481A9DB3.8050706 at tcc.com.pe>,
Jorge Mendoza <mendoza at tcc.com.pe> wrote:
Thanks for the link - looks interesting.
Still interested in whether Digium cards can be set to hi-Z if anyone knows.
Cheers
Tony
--
Tony Mountifield
Work: tony at softins.co.uk - http://www.softins.co.uk
Play: tony at mountifield.org - http://tony.mountifield.org |
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jsmith at digium.com
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| Posted: Fri May 02, 2008 8:31 am Post subject: [asterisk-users] Digium PRI card hi-Z for sniffing? |
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On Fri, 2008-05-02 at 09:26 +0000, Tony Mountifield wrote:
| Quote: | Still interested in whether Digium cards can be set to hi-Z if anyone knows.
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I talked to the product manager over the hardware cards yesterday, and
he said he wasn't aware of any support on our cards for doing that.
I've always seen it done in an external box that sits between the telco
and the digital card.
--
Jared Smith
Training Manager
Digium, Inc. |
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