[asterisk-users] Looking for PRI Card with automatic fail over
Technical Support
support at telium.ca
Wed Aug 5 08:48:56 CDT 2015
> Responding to Matt Riddell, M Shokuie, A J Stiles, and Telium Support
> (all below)
>
> Thanks for the suggestions, but a separate gateway is a problem in the
> design as the configuration is basically:
>
> Carrier --- PRI --- Asterisk (with failover) ---- Legacy PBX
> |
> - SIP / IAX2 -- our service or remote office
>
> As this is already acting as a gateway adding another box to the mix
> seems a bit over kill (unless I can embed it and the asterisk PBX into
> a 2 U pizza box). But since most gateways are designed to be used for
> fail over servers / PBXs not lines I am not sure that this would
> benefit us.
>
> So far I have found 1 company that seems to have a gateway card and
> that is the beroNet PCI / PCIe Gateway Cards which they say has the
> card level failover. I will update the list should this meet the use case.
> Eric
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 3 Aug 2015 13:54:05 -0500
> From: Matt Riddell <lists at venturevoip.com
> <mailto:lists at venturevoip.com>>
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> <asterisk-users at lists.digium.com
> <mailto:asterisk-users at lists.digium.com>>
> Subject: Re: [asterisk-users] Looking for PRI Card with automatic fail
> over
> Message-ID: <2539D3B3-4981-468F-95AF-34D9D6A170BA at venturevoip.com
> <mailto:2539D3B3-4981-468F-95AF-34D9D6A170BA at venturevoip.com>>
> Content-Type: text/plain; charset="us-ascii"
>
> Yep it was red fone
>
> http://red-fone.com
>
> 7 years ago :-)
>
> http://www.venturevoip.com/detail.php?news_id=1927
>
> --
> Cheers,
>
> Matt Riddell
> _______________________________________________
>
> http://www.venturevoip.com/news.php (Daily Asterisk News)
> http://www.venturevoip.com/pabx_on_disk.php (PABX on a Disk)
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> http://www.venturevoip.com/cc.php (Call Centre Solutions)
>
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> ------------------------------
>
> Message: 2
> Date: Mon, 3 Aug 2015 23:31:29 +0430
> From: M Shokuie <senahrm at gmail.com <mailto:senahrm at gmail.com>>
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> <asterisk-users at lists.digium.com
> <mailto:asterisk-users at lists.digium.com>>
> Subject: Re: [asterisk-users] Looking for PRI Card with automatic fail
> over
> Message-ID:
>
> <CAJC6NeY7if_T-YspbccLLf2ZiL4LOBt45ajJ=kKsgWn=7nzmmw at mail.gmail.com <mailto:7nzmmw at mail.gmail.com>>
> Content-Type: text/plain; charset="utf-8"
>
> Hi there,
>
> Using Sangoma Vega400 gateway you'll have what is called
> resilliency which
> is exactly what you are looking for.
>
> Regards.
> --
> M. Shokuie Nia
> On Aug 3, 2015 18:51, "Eric Klein" <eric.klein at greenfieldtech.net
> <mailto:eric.klein at greenfieldtech.net>> wrote:
>
> > Hi all,
> >
> > Strange request, I have a customer where we are putting an
> Asterisk PBX in
> > front of a legacy (non-VoIP) PBX. One of the requirements it
> that the
> > Asterisk PBX have 2 PRI ports (on towards the legacy PBX and one
> towards
> > the carrier) with the ability to go to pass through should the
> Asterisk PBX
> > (software or hardware level) fail.
> >
> > I did not see this feature in the Digium, Sangoma, Allo, or
> OpenVox cards.
> >
> > Does anyone know of a card that will do this? I know that Digium
> has an
> > external box (the r850) that does something similar for 2 PBXs
> making them
> > high availability, but in this case I only have the 1 Asterisk
> box acting
> > as a gateway and passing some calls out over SIP and IAX2.
> >
> > Any suggestions would be appreciated.
> >
> > Thanks
> > Eric
> >
> > --
> >
> _____________________________________________________________________
> > -- Bandwidth and Colocation Provided by
> http://www.api-digital.com --
> > New to Asterisk? Join us for a live introductory webinar every
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> ------------------------------
>
> Message: 3
> Date: Tue, 4 Aug 2015 08:47:02 +0100
> From: A J Stiles <asterisk_list at earthshod.co.uk
> <mailto:asterisk_list at earthshod.co.uk>>
> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> <asterisk-users at lists.digium.com
> <mailto:asterisk-users at lists.digium.com>>
> Subject: Re: [asterisk-users] Looking for PRI Card with automatic fail
> over
> Message-ID: <201508040847.02341.asterisk_list at earthshod.co.uk
> <mailto:201508040847.02341.asterisk_list at earthshod.co.uk>>
> Content-Type: Text/Plain; charset="utf-8"
>
> On Monday 03 Aug 2015, Eric Klein wrote:
> > Hi all,
> >
> > Strange request, I have a customer where we are putting an
> Asterisk PBX in
> > front of a legacy (non-VoIP) PBX. One of the requirements it
> that the
> > Asterisk PBX have 2 PRI ports (on towards the legacy PBX and one
> towards
> > the carrier) with the ability to go to pass through should the
> Asterisk PBX
> > (software or hardware level) fail.
> >
> > I did not see this feature in the Digium, Sangoma, Allo, or
> OpenVox cards.
> >
> > Does anyone know of a card that will do this? I know that Digium
> has an
> > external box (the r850) that does something similar for 2 PBXs
> making them
> > high availability, but in this case I only have the 1 Asterisk
> box acting
> > as a gateway and passing some calls out over SIP and IAX2.
> >
> > Any suggestions would be appreciated.
>
> Use a 4-pole change-over relay to switch the PRI connection either
> to the
> Asterisk box if it gets some sort of "heartbeat" signal from the
> computer
> (say, toggling one of the lines of a printer port, if the
> motherboard still
> has one), or the old PABX?
>
> You might have to do some mean, down and dirty low-level
> programming, to embed
> your heartbeat-generating code in Asterisk's idle loop; but the
> Source Code is
> out there, if you fancy the challenge .....
>
> --
> AJS
>
> Note: Originating address only accepts e-mail from list! If
> replying off-
> list, change address to asterisk1list at earthshod dot co dot uk .
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 4 Aug 2015 08:23:47 -0400
> From: Technical Support <support at telium.ca <mailto:support at telium.ca>>
> To: asterisk-users at lists.digium.com
> <mailto:asterisk-users at lists.digium.com>
> Subject: Re: [asterisk-users] Looking for PRI Card with automatic fail
> over
> Message-ID: <55C0AED3.4030004 at telium.ca
> <mailto:55C0AED3.4030004 at telium.ca>>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> On 8/4/2015 3:47 AM, A J Stiles wrote:
> > On Monday 03 Aug 2015, Eric Klein wrote:
> >> Hi all,
> >>
> >> Strange request, I have a customer where we are putting an
> Asterisk PBX in
> >> front of a legacy (non-VoIP) PBX. One of the requirements it
> that the
> >> Asterisk PBX have 2 PRI ports (on towards the legacy PBX and
> one towards
> >> the carrier) with the ability to go to pass through should the
> Asterisk PBX
> >> (software or hardware level) fail.
> >>
> >> I did not see this feature in the Digium, Sangoma, Allo, or
> OpenVox cards.
> >>
> >> Does anyone know of a card that will do this? I know that
> Digium has an
> >> external box (the r850) that does something similar for 2 PBXs
> making them
> >> high availability, but in this case I only have the 1 Asterisk
> box acting
> >> as a gateway and passing some calls out over SIP and IAX2.
> >>
> >> Any suggestions would be appreciated.
> > Use a 4-pole change-over relay to switch the PRI connection
> either to the
> > Asterisk box if it gets some sort of "heartbeat" signal from the
> computer
> > (say, toggling one of the lines of a printer port, if the
> motherboard still
> > has one), or the old PABX?
> >
> > You might have to do some mean, down and dirty low-level
> programming, to embed
> > your heartbeat-generating code in Asterisk's idle loop; but the
> Source Code is
> > out there, if you fancy the challenge .....
> >
> Building on the answer above, have a look at ESL labs - who make
> such a
> relay that can bypass the PRI to the Asterisk server. As well, have a
> look at HAAst (www.telium.ca <http://www.telium.ca>) which can
> monitor Asterisk and then
> control the ESL relay to bypass Asterisk in case of failure.
>
> -Raj-
>
> P.S. My opinions do not necessarily reflect those of my employer. As I
> am employed by Telium you can bet that me opinions are biased!
>
>
>
>
If you place an ESL PRI A/B switch on either side of the Asterisk server
you can easily bypass the Asterisk server, or place it inline with the
PRI link.
You can also chose to TAP the lines as noted above, but you have to
ensure that both PRI cards don't go live at once...(if I understand that
product correctly).
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