[Asterisk-Users] SIP Phone -> PBX Phone

[Paul Hales]

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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