Posted on 01/17/2019 3:58:54 PM PST by GraceG
You’d have to do the tap in the last mile, after the VRAD / DSLAM (that green cabinet on your corner. All the rest is digital.
Lawfull intercepts are done at the Central Office by duplicating IP packets and sending to a different address.
Some background:
https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/lawful/intercept/book/65LIch1.html
A traditional wire tap is passive, you monitor the electromagnetic fields with an inductive tap.
>Wire taps are now digital connections. All ‘landline’ calls are actually IP calls once in the network.
True for providers using softswitches, not those still using TDM based switches such as Lucent 5ESS and NT DMS-100 which can provide service over POTS. However it doesn’t mean that one side or the other couldn’t be IP based.
Incompetent private detective and if he has copper wires at the house, maybe. Official wiretaps, no.
More likely a wireless phone for his landline with either a weak battery, or he was walking around near the end of the range of the base station.
Maybe, maybe not. Some folks have fiber to the house. Digital until it gets to the big box on the side of the house. And a few have residential VoIP phones.
???
At one time I worked for a little over a year installing equipment in telephone company buildings in northern Va.
The wiretaps done there were wired straight from the main frame with wires leading to a locked black box that is NOT wired in series with the callers.
Your landline would be on frame A, level C, box 187, pairs 16-19 (every line had 2 pairs of wires: tip, ring, t1, r1).
Once given the court order the telephone company tech would attach wires from your wires to the black box. The box would be sealed by law enforcement.
That was 30 years ago but I doubt if much has changed.
Absolutely no way to tell if your line is tapped....until the law lets you know.
Re the oscillation. Could just be due to a sexy voice!
I think we should just assume all phones are tapped.
The TDM part is explicitly digital.
Of course TDM is digital, it’s just not packet based IP.
OK, OK, for the smaller CLECs, sure.
Sorry, I don’t know why that picture gave an error message. Must be a bad link, no offense intended to you.
You are part of the chosen few. You know, and anybody else who does know for certain is probably not going to give you a straight answer. Don’t waste time looking for validation.
Hope all is well with you.
Hang in there.
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