[Freeswitch-users] Migration to FS

Thomas Troesch ttroesch at dslextreme.com
Thu Oct 23 03:03:19 PDT 2008

Thank you for your input.  I am clearly naive about what may be required, 
and I need to get more details on what is currently in use.

The environment is not 'can't-be-down-for-a-second' - it has crashed 
before - but that became an emergency.  It is possible to plan for short   
( 1/2 hour ) downtimes, but not easily.

Thank you for the link - it was interesting.  I also listened to some talks 
by Diana Cionoiu of YATES and Nenad Corbic from Sangoma that I found on 
you-tube ( from Asterisk-Tag in Germany ).  It helped by giving some 
context for things I'm not familiar with.

I'll check in on the IRC when I have some questions.

On Wednesday 22 October 2008 15:01:34 Michael Collins wrote:
> On Wed, Oct 22, 2008 at 9:50 AM, Thomas Troesch 
<ttroesch at dslextreme.com>wrote:
> > Is there a document or recommended strategy on how to migrate from an
> > existing PBX system to FS?  There are 2 T1-PRI lines used 24/7 (call
> > center) which can't be down for development or testing.  The existing
> > system is InterTel.
> Right now the OpenZAP stuff is still in development. I can't recommend
> putting it in a 24/7 can't-be-down-for-a-second kind of environment, at
> least not yet. We're getting there... Also, be sure to note which PRI
> protocol variant (aka "dialect") you are currently using. OZ supports DMS
> and 5ESS pretty well but NI2 is still a little iffy. Again, we're working
> on it but there are only so many hours in the day...
> As for documentation, I'm almost positive that there aren't any docs
> extant that describe this process. I do know that Yossi N. has migrated
> from Asterisk to FreeSWITCH and has some experience. His presentation at
> ClueCon this year is available here:
> http://files.freeswitch.org/cluecon_2008/Day_03.Presentation_11.Yossi_Nei
> However, I don't think we're at the point of how to rip out a legacy PBX
> and drop in FS. Not yet, but give us some time... :)
> > I have a Sangoma A104D available with a tap ready to be installed.  I'm
> > thinking (hoping?)  that I can start by using it to monitor and/or
> > record calls without interfering with the InterTel.
> I am interested in knowing if you can pull this off. I'd love to see this
> in action. I've got an A104D and I would be very interested in seeing
> someone get the HI-Z setup nailed down so that you can tap T1 lines. I'm
> particularly interested in sniffing d-chan traffic but I would also be
> interested in seeing someone use FS to create a call-recording system. (I
> know that Tri-Sys in NJ uses YATE + Sangoma for this, so I'm 100% sure
> that it is possible.)
> If you feel like being a trailblazer then by all means go for it! Hop on
> IRC (#freeswitch and #openzap on irc.freenode.net) and pepper us all with
> questions. The only rules are "be cool" and "document it on the wiki if
> you learn something that wasn't already there."
> -MC

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