Some Background:
I have written on another hub that I’m not a big fan of VOIP and that is true. VOIP is however not totally bad, it does have its place. One great use I have found for a VOIP setup is that it can offer you a very low cost way to add another phone line to your home or business if you have a existing broadband internet connection.
So what’s the secret to constructing a cheap VOIP phone? First of all, do not link yourself with one of the popular services. I do not use Vonage or AT&T or for that matter any large vendor, I built it all myself.
I was curious as to how far the VOIP world had progressed from days long ago. I had my fingers in VOIP many years ago when just the VOIP boards were thousands of dollars. Back then it was definitely NOT a usable consumer product. I was quite pleased to see that many vendors now offered VOIP ATA’s (Analog Terminal Adapters, the box that turns a analog telephone to digital packets that can traverse the internet and get to whomever you are calling). I was even more surprised to find out that there are several great web sites on the matter and that the ATA’s are quite cheap, a wide selection under 100.00.
VOIP utilize something called SI. SIP’s formal non abbreviated name is the “Session Initiation Protocol”. SIP is what is known as a “signaling protocol” this enables things like instant messaging, SMS, conferencing and finally telephones to communicate on the internet. There are also other things that go along with it like “codec’s” to do most of the work. I’m not going to go into technical details here as the purpose of this hub page is to make a cheap IP phone setup, not understand voice protocols and analog to digital conversion schemes.
HERE IS HOW I BUILT MINE:
I'll
give joins in the connections segment at the base of the center point as
opposed to in the article to ideally make it less demanding to peruse.
Purchase
the right Analog Terminal Adapters (ATA):
Since
most ATA's are "bolted" to a particular bearer... Much like your
AT&T phone is bolted to the AT&T system and it can't be utilized on
Verizon's system. The ATA is the same, in the event that you have one and it's
bolted to say "Vonage" then it's pointless unless you have the open
secret key or they will give you the watchword , it's a futile gadget for the
reasons here.
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