[Asterisk-Users] Zaptel dacs / dacs

[Nicolas Bougues]

On Fri, Jul 02, 2004 at 02:48:17PM -0700, Chris A. Icide wrote:
> 
> 2) can you cross connect PRI interfaces?
> 
> in other words can you use the dacs functionality to insert a digium card 
> (on a system running asterisk) in between a pri from a carrier, to a legacy 
> pbx system?
> 

Yes, you can. But what's the point ? With such a setup (zaptel
bridging), you don't get that many benefits. I developed a small
std-local driver that can help you :
- cross connect two PRIs
- and get a monitoring feed (imagine a "Y" cable), so that you can do
  (read-only) analysis on the PRI traffic.

But I doubt that's what you want to do there. What you may want to do
is being able to use the legacy PBX, as well as Asterisk features.

For that, you need to :
- setup Asterisk for the PRI connection to the telco (pri_cpe)
- setup Asterisk for the PRI connection to the legacy PBX (pri_net)
- setup your dialplan (extensions.conf) so that :
  - Asterisk talks to the telco the right way
  - Asterisk talks to the PBX the right way
  - Asterisk forwards calls to/from the PBX the right way
  - Asterisk does whatever else you want it to do

It's not that hard. However, it will probably involve some "trial and
error", and your PBX users might not like it. 

-- 
Nicolas Bougues
Axialys Interactive