Comments on: CNET Live - Episode 18 - Show Notes
David Sifry from Technorati joins this week's CNET Live.
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- Regarding the VOIP over Telephone Line call
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by charlesrking
August 18, 2007 4:46 AM PDT
- I was watching this episode today (late, I know but I just stumbled across it) and heard the call from the guy in North Carolina looking to see if it was possible to run VOIP through the house phone lines. It is indeed possible, there are some caveats and you sort of had the idea but were off by a tad bit.
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(3 Comments)#1) You have to make sure that there is no power being transferred through the phone jacks, this means making sure you are completely unhooked from the local telco service (at the pole I believe).
#2) You do not need to plug the VOIP router into the house/street junction point - you can plug it into any phone jack in the house (for most routers at least)
When you plug it into the phone jack, it provides the power and connection for all connected jacks. I do this in my apartment (Where I definitely do not have access to the incoming jacks from the telco) and have my Vonage phone router plugged into a jack near my computer (which is next to my bedroom - 'down stream' so to speak) and the phone in the kitchen ('up stream') works fine through the jack.
The key is making sure that there is absolutely no power coming from the telco lines into the house, otherwise you can blow your VOIP modem. You can usually check this by plugging in a phone (before hooking up the VOIP router) and listening for an intermittent clicking sound - if you hear it then it is possible that power is still coming over the jack and you will have to get the telco to disconnect completely; if you hear absolutely nothing you should be good to go.