[Asterisk-Users] Asterisk - Connction to analog PBX?

[Cory Vaughan]

Alex, you seem happy to talk about Asterisk so i
thought I would throw this one at you.

I plan to have a support center in Bangladesh that is
taking calls from american 1-800 numbers. They have
Quintum VoIP switches which do the IAX and g.729 i
think it is.

The thing is is that I dont have alot of money and I
plan to take overflow and supervisor calls here in
Plano Tx maybe 8 extensions.

So calls will hit american numbers at the colo in
Maryland and be routed Voip to Bangladesh Or to Plano
tx.

My question is after I set up Asterisk what do I stick
in the box to connect to the 8 extensions. Also I 
plan to use only a cable connection here in Tx.,
 3 mbps/384kbps which I planned to use quintum with
because they compress each channel to 15kbps but I
dont know about asterisk whatits compression goes down
to. With taht work for 8 extensions. And does anyone
know of any good Sip Software for monitoring and
gathering statistics?

Thanks
Cory
--- Alex Lopez <alex at opsys.com> wrote:
> We do this here.  The best would be to connect your
> PBX to the Asterisk
> box via a T1 of PRI interface. Like this you can set
> up DID routing in
> your PBX to access the PBX extensions directly. 
> Other wise you can get
> the four port FXS card and plug your PBXs' CO line
> (input) into the FXS
> card on your asterisk server.  The only way to talk
> to your PBX is by a
> TDM interface, or as it is known in the Asterisk
> world ZAPATA!!!, so
> sorry but your going to have to by some type of
> interface. There are
> many that are supported by Asterisk but the ones
> that I have had the
> best luck with are of course, the Digium products.
> 
> 
> Our setup is really flexable. We have a PRI coming
> into an Adtran Atlas
> 550 with 6 T1 interfaces.  This allows us to
> aggregate or digital
> services without have to get a T1/PRI line for the
> telco for each
> server.
> 
> Our asterisk handles all of our VoIP calls and I
> have setup the contexts
> in the config files to 'transfer' the call to our
> main PBX
> Auto-Attendant.  This way we get the ability to use
> SIP,H.323,IAX,etc,etc. and use our existing Company
> dialplan on our
> desk.  Using the Asterisk like this has been great!!
>  Our next step is
> to setup outgoing routing tables in our PBX to
> transfer Long distance
> call to the asterisk and pass them off to a IAX
> gateway like nufone to
> realized even further savings.
> 
> Sorry for the long winded reply but I AM EXTREAMLY
> HAPPY with
> asterisk!!!
>  
> 
> 
> -----Original Message-----
> From: Jim Paraschou [mailto:algogr at yahoo.com] 
> Sent: Wednesday, May 14, 2003 2:46 PM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] Asterisk - Connction to
> analog PBX?
> 
> I have an isdn bri and i bring it into asterisk with
> an avm fritz card. Now i want to connect to the PBX
> in
> order to utilize its extensions, instead of buying a
> channel bank or an fxs card. Do yo think i can do
> it?
> 
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