[Asterisk-Users] SIP Phone -> PBX Phone

[Phil Stevens]

Hi Paul,

I have yet to find out the make and model of the PABX, I was just doing
some general background research at this point. Is the same device
(TDM400?) used for connecting both to PSTN and to other PABX's? I don't
need to connect the Asterisk box to PSTN at this point, just to another
PABX. I do know that the current PABX already has a tie-line that
connects to a second PABX.

If Asterisk connects to another PABX via FXO ports, does the card have
to have an Austel permit? I do not want to connect Asterisk to PSTN,
only to another PABX.

Do I have to purchase an $800 4-port FXO Austel-certified card? Or, is
there a cheaper option (1 port? for testing purposes) that will satisfy
Austel requirements?

Thanks.


-----Original Message-----
From: Paul Hales [mailto:paulh at adairs.com.au] 
Sent: Friday, September 17, 2004 2:02 PM
To: asterisk-users at lists.digium.com
Subject: RE: [Asterisk-Users] SIP Phone -> PBX Phone



Good to see another Australian user on the list!

You could set up a card with some FXO ports (TDM400?) and use those
lines to hook up the Asterisk box to your existing PABX. But I am sure
someone else will come up with a _much_ more clever solution.

Later,

PaulH 
Melbourne

-----Original Message-----
From: P J [mailto:phil.stevens at cydn.com.au] 
Sent: Friday, 17 September 2004 12:49 PM
To: asterisk-users at lists.digium.com
Subject: [Asterisk-Users] SIP Phone -> PBX Phone

Hi,

I'm new to Asterisk, and am researching information on linking Asterisk
to an existing PBX. Could somebody please help me with what might be
required for the following setup? -

- We have an existing PBX.
- I am going to setup Asterisk on our internal network along with some
internal SIP phones.
- I understand how Asterisk will act as the SIP Server, and SIP phones
will be able to call each other, however -

- I would also like to link Asterisk to our existing PBX so that SIP
phones could call standard phones on our existing PBX system (and
vice-versa).

- I *do not* need to use Asterisk to call out via PSTN or ITSP. All
outbound calls will be via the existing PBX.


What hardware device is required to link the Asterisk box to the
existing PBX?

Could the SIP phones call the standard phones on our existing PBX
system? If so, how does Asterisk do this?


Thanks in advance.

Ps. Even though I *do not* need to use Asterisk to call out via PSTN,
what hardware device would be required to do this? And, how does this
device differ from the device that links Asterisk to the existing PBX?

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