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I have an intranet network in my building, and i was thinking to use this network to call each other, instead of calling using the normal phone line and pay a lot of money.

Is it possible to put a phone directly on a internet cable and call each other through? or there a better solution?

please advice, because i just have the idea and i know nothing about how to do it.

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without using the computer?! – user8228 Dec 6 '09 at 16:17
yes, just the phone, because if we will use computers, so no need to phones we can use skype or any voice chat application. – Amr Elgarhy Dec 6 '09 at 22:52
up vote 1 down vote accepted

Yes, easily possible...

You just need VOIP based phones that can either use your router and directly link to a third party sip provider, or roll out your own PBX (such as Trixbox) however, that would require a computer to be on 24x7

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