Connecting OBI100 to home telephone distribution in basement - How?
raczyk:
Sounds like a good test, looking forward to it.
As I understand I'd then connect the Obi phone port into any of the cat3 phone lines in the house to have the new VoIP service available throughout all the jacks in the house. Or does it have to be fed off the main phone line which is the demarc point on the house? Also it may be a good idea to have the main line disconnected of the house, what if someone makes a mistake at an ISP and accidentally activates my phone connection? (Hmm wonder if that would ever happen). But that that would also blow the phone port on the Obi right?
Rick:
Quote from: raczyk on February 25, 2013, 06:28:22 pm
Sounds like a good test, looking forward to it.
As I understand I'd then connect the Obi phone port into any of the cat3 phone lines in the house to have the new VoIP service available throughout all the jacks in the house. Or does it have to be fed off the main phone line which is the demarc point on the house? Also it may be a good idea to have the main line disconnected of the house, what if someone makes a mistake at an ISP and accidentally activates my phone connection? (Hmm wonder if that would ever happen). But that that would also blow the phone port on the Obi right?
First, ISP's don't power your internal phone line unless you have them hook up some type of a box like a modem. Your phone company is providing DSL service which comes over phone lines.
Your house should be wired so that all phone jacks are connected, whether they are wired in series or separately. So plugging into one outlet powers everything.
If the line gets powered by two sources, the OBi will likely be damaged. Simply go to the point in your home where the wires originate and unplug/unwire the outside feed. It is that simple.
dircom:
If you have a wiring cabinet like some modern houses do, the incoming line "feeds" the distribution wires that go to all the jacks. Disconnect the incoming line at the Network interface outside, and disconnect it in your wiring cabinet for good measure.
Older houses, the wire comes in from the outside, and then goes to the first jack then to the next etc.
or some combination of serial (jack to jack) and star (spoke and hub) type connections.
If you think how your landline type phones get a signal in your home. think of the wires as water pipes.
If there is a connection, the water can/will flow.
When an AT&T type land line is disconnected it is dead, no dial tone, ie no calling out, no 911
It's not like a cell phone where you can still call 911.
However
If you disconnect your previous land land (AT&T etc), the field technician does not always disconnect the drop from the pole or pedestal to your house. Then someone down the street might move in. If the telco uses that same pair of wires to give the new person service, your line would then have dial tone ie 48V DC talk battery or @90V AC ring voltage, not to mention possible induction on the line.
If you had phone service thru a CATV provider, the signal either came from a jack on the back of the cable modem, or outside the house from a special box that provides dial tone and ringing voltage.
Rick:
Quote from: dircom on February 26, 2013, 07:27:52 am
If you have a wiring cabinet like some modern houses do, the incoming line "feeds" the distribution wires that go to all the jacks. Disconnect the incoming line at the Network interface outside, and disconnect it in your wiring cabinet for good measure.
Older houses, the wire comes in from the outside, and then goes to the first jack then to the next etc.
or some combination of serial (jack to jack) and star (spoke and hub) type connections.
If you think how your landline type phones get a signal in your home. think of the wires as water pipes.
If there is a connection, the water can/will flow.
When an AT&T type land line is disconnected it is dead, no dial tone, ie no calling out, no 911
It's not like a cell phone where you can still call 911.
However
If you disconnect your previous land land (AT&T etc), the field technician does not always disconnect the drop from the pole or pedestal to your house. Then someone down the street might move in. If the telco uses that same pair of wires to give the new person service, your line would then have dial tone ie 48V DC talk battery or @90V AC ring voltage, not to mention possible induction on the line.
If you had phone service thru a CATV provider, the signal either came from a jack on the back of the cable modem, or outside the house from a special box that provides dial tone and ringing voltage.
It's been noted that in some areas while the phone service was disconnected, a dial tone still existed, believed to be for 911 calls. So even with regular POTS service, you need to disconnect the wire even if it seems dead.
dircom:
re: 911 dialing, in my years of wkg for ma bell, that has not been my experience but YMMV
In any case you still need to disconnect your wiring at the NID.
found this post on another website
"If you have DISCONNECTED the phone service from your home phone, and there is NO DIAL TONE on the phone, you DO NOT have ability to call 911 no matter what from that line.
If you have dial tone but can't place outbound calls, you should have the ability to dial 911 if needed. It's called Soft Dial Tone and is typically used in situations where the end user has been disconnected (suspended) for non-payment of the bill. The Federal Law states the phone company HAS to allow and provide soft dial tone for 911 purposes only if the end user is suspended for non-pay.
If you have requested to "Disconnect" your line completely and are no longer paying any type of bill to the phone company, the phone company will not provide Soft dial tone or 911 access and they are NOT REQUIRED to.
And believe me, they are not going to give anything they don't have to. I would not rely on this soft dial tone at all, I would make sure you're able to dial 911 from whatever phone you are using as a main line into your home. "
and from another website
"As a 9-1-1 Professional:
1) Please do not assume that a disconnected landline will still work to dial 9-1-1. This is not supported in most states. Also, 9-1-1 knowing your location is actually based on your phone number. When your phone is disconnected or the number is recycled, this means that the 9-1-1 center may not know your physical address.
2)Disconnected/"throw away" cell phones. Although it is true that you should be able to dial 9-1-1 from these phones, they do not support:
a) the ability for the 9-1-1 center to call you back if disconnected accidentally (or intentionally).
b) do not support even basic wireless location information like a live cell phone. The closest the 9-1-1 center will get is the Tower location that your cell phone is connected to. For a rural area this could easily mean you are within a 25 mile radius of the tower. For an urban area, this could mean they know you are within a mile or two of a tower. That's a pretty big area to search within."
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