Posted in reply to the post by Aldo El Hefe:
You say a phone conversation, but what type of phone were you using ?
Was it a traditional landline phone ?
Was it a mobile phone ?
Was it a VOIP broadband cable phone ?
Was it a smart phone ?
And what kind of phone was the other end user using ?
I have noticed this "echoing" occasinally for many years when talking on a mobile phone network.
Phone systems are very complex, and even landline phones use backhaul repeaters in places where there are no wires, they use microwave repeaters to cover distances of about 40 miles (microwave is point to point, line of site only) for truncking multiple channels (voice and data).
Mobile phones work by transmitting on a radio frequency the voice and data to a tower, and then repeating the transmission over digital trunk lines (wired) on a network to the tower that then will repeat the data or voice from the tower (via radio) to the reciever which you are talking to.
In other words, when a person in Sebastapol calls someone over 4 miles away or out of range of the tower), it is tranfered to a wired network, and then repeated at the tower (that could be anywhere, like Santa Rosa or L.A.) to complete the communications with your party. Todays mobile and smart phones do not connect directly with each other, the signals are often repeated many times, and in some cases the trunking or backhaul is done with microwave repeaters between towers. Note that the individual devices themselves DO NOT and cannot use microwave communications, but the various repeating operations often cause this echoing.
Also, if you are talking to someone far away on a landline, your conversation is often being repeated on AT&T long lines microwave communications systems.
That would explian the echoing, I know it is a wierd feeling, and I don' like it one bit, but whachewgonnadoaboutit ?
And keep in mind, that AT&T, the DHS, the NSA and the FBI record all communications , that would be mobile phones , smart phones, internet e-mails and computer transactions.
The best things to do are, be careful what you say or write on ALL modern communications devices, EVERYTHING can be compromised. Use encryption when transmitting propriatary information, and just take it as a given that your are being monitored by the corporatelly run government.
If you didn't know about the huge spy center run by AT&T in their building in S.F. for the last 6 years, and about the huge new data storage center being built in Utah being paid for by US taxpayers (the NSA and FBI), well you do now know !