add voip phone to office pabx

Hi,

We have a office pabx (7 phones).

If we install a router with VOIP on the office is it possible to add a new
phone to the company pabx?

or at least be able to call the office/office to call the employee without
charge.

We could use a skype system, but would prefer to call via the existing
phones, rather than via computer

Simon

"Simon" <> wrote in message
news:5YoFg.12228$. uk...
> Hi,
>
> We have a office pabx (7 phones).
>
> If we install a router with VOIP on the office is it possible to add a new
> phone to the company pabx?
>
> or at least be able to call the office/office to call the employee without
> charge.
>
> We could use a skype system, but would prefer to call via the existing
> phones, rather than via computer


What make of PABX?
OK, 7 extensions, but how many exchange lines?
and are they ISDN or analogue (POTS) lines.

If they are POTS lines, does the switch have any spare capacity, or are you
prepared to lose an exchange line?
If so it could be wired into an ATA instead of the exchange.

The new VoIP line would presumably be accessible by any phone by pressing
the appropriate line-key or access digit(s)

--

Graham.

%Profound_observation%

"Graham" <> wrote in message news:...
>
> "Simon" <> wrote in message
> news:5YoFg.12228$. uk...
> > Hi,
> >
> > We have a office pabx (7 phones).
> >
> > If we install a router with VOIP on the office is it possible to add a
new
> > phone to the company pabx?
> >
> > or at least be able to call the office/office to call the employee
without
> > charge.
> >
> > We could use a skype system, but would prefer to call via the existing
> > phones, rather than via computer
>
>
> What make of PABX?
> OK, 7 extensions, but how many exchange lines?
> and are they ISDN or analogue (POTS) lines.
>
> If they are POTS lines, does the switch have any spare capacity, or are
you
> prepared to lose an exchange line?
> If so it could be wired into an ATA instead of the exchange.
>
> The new VoIP line would presumably be accessible by any phone by pressing
> the appropriate line-key or access digit(s)
>
> --
>
> Graham.
>
> %Profound_observation%
>
>
I'd put money on that went OTT.

"Nick" <> wrote in message
news:%jtFg.8200$

[snip]

> I'd put money on that went OTT.

I don't understand that..!

Ivor

"Graham" <> wrote in message
news:

[snip]

> If they are POTS lines, does the switch have any spare
> capacity, or are you prepared to lose an exchange line?
> If so it could be wired into an ATA instead of the
> exchange.
> The new VoIP line would presumably be accessible by any
> phone by pressing the appropriate line-key or access
> digit(s)

That's precisely what I do. I have the phone ports of my ATA's connected
to exchange line ports on the PABX. Any extension user can then select
whichever line they want by dialling the appropriate access code. For
example 81 gets the Sipgate Birmingham 0121 number, 82 gets the London 020
number, 83 gets the Gradwell number, 84 gets a BT line, etc.

If you have ISDN, the AVM Fritz!Box range has support for these, but AFAIK
only one POTS/ISDN line is supported.

Ivor