[Asterisk-Users] SPA-3000 as FXO Gateway for * (Was: Qs aboutFXO/FXS cards)

[Damon Estep]

Voxilla.com has a great config wizard for the SPA-3000 and *
http://voxilla.com/spa3kasterisk.php

I took the output from this wizard and dumped it on my test box with an
SPA 3000 (with some mods to match my * contexts) and everything worked
great.

Calls from the PSTN to the spa3000 are routed to dialplan #8 on the
spa3000, which dials * 

Both the FXO and FXS port register with *

The SPA3000 is set up as a SIP peer in * with auth for outbound calls to
the PSTN.

Pretty cool for $100, a FXO and a FXS  for *

You need to play with the PSTN answer delay to eliminate extra rings on
the caller side, but still allow the SPA3000 to pick up caller ID.

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Damon Estep
> Sent: Monday, January 03, 2005 7:42 AM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: RE: [Asterisk-Users] SPA-3000 as FXO Gateway for * 
> (Was: Qs aboutFXO/FXS cards)
> 
> Thanks Rich,
> 
> I have an SPA-3000 laying around, so I will attempt to set it 
> up in a little more conventional manner (although your method 
> looks like a winner for a home test PBX). Would you mind 
> posting or PM your current config to me, maybe screenshots if 
> you PM. If I start with that it will take less time to get to 
> the point where the SPA-3000 is a true FXO-FXS gateway for *. 
> I will be happy to post screen shots for others on our 
> website after I figure it out and test it, assuming it performs well.
> 
> The lack of a reliable and inexpensive FXO interface for * 
> rules it out in one of the largest potential markets, small 
> business PBX systems. The lack of re-invite proxy capability 
> rules it out for very large deployments (of course there is 
> SER to help out with those). At least for us right now our * 
> deployments are limited to SMEs with PRIs for PSTN 
> interfaces. I hate to rely on eBay goods for deployments, 
> while the prices are great it always seems I eventually end 
> up paying full pop because an item fails and there is not 
> eBay inventory or spares on hand.
> 
> I have no issues posting configs that I have spent time on, 
> as it seems they can always be improved by the community and 
> we all benefit.
> 
> Damon 
> 
> > -----Original Message-----
> > From: asterisk-users-bounces at lists.digium.com
> > [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Rich 
> > Adamson
> > Sent: Monday, January 03, 2005 6:11 AM
> > To: Asterisk Users Mailing List - Non-Commercial Discussion
> > Subject: RE: [Asterisk-Users] Qs about FXO/FXS cards
> > 
> > > I have been wondering if the spa 3000 would make a good
> > PSTN interface
> > > for an * box where POTS is the only available (or
> > practical) service.
> > > Have you implemented this? Are there any limitations or
> > known issues?
> > > The SPA2000 sure seems to work well as an ATA, even had
> > good luck with
> > > fax over IP using g.711 and the fax detection in zaptel 
> and the SPA 
> > > (turns off echo cancel dynamically when the CNG tone is heard I 
> > > believe).
> > > 
> > > Can you use the FXS and FXO ports at the same time, for two
> > separate
> > > calls via * ?
> > 
> > Yes, it works fine.
> >  
> > > The SPA 3000 is small enough that a half dozen of them would be 
> > > manageable, any more than that and your are usually in 
> the T1 price 
> > > range for service anyways.
> > 
> > The down-side to the spa3k is that its rather difficult to 
> configure 
> > since they've provided so many different config options and 
> their user 
> > manual does not address much beyond a basic config.
> > 
> > For my home use, I inserted the spa3k into the pstn line in 
> such a way 
> > as to avoid remedial spousal training. :) All house phones are 
> > attached to the fxs (line 1) port.
> > 
> > This specific config supports:
> > - all outgoing fxs -> pstn calls are passed through to the fxo port
> >   without asterisk being involved. (eg, avoids 911 and training 
> > issues)
> > - all outgoing fxs calls prefixed with a "8" are routed to * for
> >   completion (regardless of what follows the 8).
> > - all outgoing fxs calls matching "3xxx" (* extensions) are 
> routed to
> >   * for completion.
> > - the fxs port was configured to register with *, and therefore the 
> > fxs
> >   port is also an exten from asterisk's perspective (eg, * 
> exten's can
> >   dial the fxs port)
> > - distinctive ringing is implemented as:
> >    - incoming pstn calls (via fxo port) ring normal
> >    - incoming voip & * calls use a distinctive ring
> > - the fxo port was configured to register with * (different 
> creditials
> >   from the fxs port), and therefore asterisk can place calls through
> >   the spa3k fxo port.
> > - I specifically did _not_ want * involved with incoming pstn (fxo)
> >   calls (in this case), but rather wanted those to ring 
> through to the
> >   fxs port directly. (Avoids complaints when care and feeding *)
> > - the spa3k is running v2.0.11(GWg)
> > 
> > The only difference between the above and using the spa3k as an 
> > inbound pstn gw is the definitions for the pstn (fxo) port. 
> If you dig 
> > through the voxilla.com forum postings, you'll see where 
> that also has 
> > been implemented. However, that fxo -> * connection is even less 
> > clear. I had that working several months ago, but that wasn't my 
> > specific objective so I didn't attempt to document it.
> > 
> > The problem with most of these external gateways (regardless of 
> > vendor) is that it almost requires a knowledgable person 
> with a packet 
> > sniffer and a lot of trial & error mucking around to find the 
> > appropriate combination of parameters to accomplish a 
> specific task. 
> > In my specific implementation above, the key turned out to be 
> > extensive use of dialplan strings that were not very well 
> documented.
> > 
> > 
> > 
> > _______________________________________________
> > Asterisk-Users mailing list
> > Asterisk-Users at lists.digium.com
> > http://lists.digium.com/mailman/listinfo/asterisk-users
> > To UNSUBSCRIBE or update options visit:
> >    http://lists.digium.com/mailman/listinfo/asterisk-users
> > 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>