[Asterisk-Users] Interfacing with an existing phone system

[Ray Gauss]

http://www.voip-info.org/wiki-Asterisk+legacy+integration

On Apr 23, 2004, at 9:15 AM, Joel Duffield wrote:

>
> On Thursday 22 April 2004 07:05 pm, Joel Duffield wrote:
>> We want to use asterisk to extend our current phone system. It is a
>> regular plain old system. Has anyone done this before?
> Absolutely - in a lot of different ways.
>
>> We would be
>> adding about 4 SIP (probably Cisco) phones to use with asterisk. What
>> kind of card will I need to use for this, FXS or FXO.
> Neither of those types of cards.  You will need an ethernet
> card/connection to
> use a SIP phone.  Also, before you pay all that money for new phones,
> you
> could test/learn using asterisk with free softphones.
>
> ****
> - Sorry I didn't ask this question very well, I meant how will I
> interface with the existing phone system, It is an old system so really
> the only way I have to connect to it is through putting asterisk in
> place of a phone at an extension. Can I use the four port card? The
> whole thing is a trial to convince the powers that be to switch the
> whole system over to VOIP as the old system is on its last legs.
> ****
>
> Anon
>
>
> Thanks