Depends upon the type of phone line. Analog voice OR digital data stream that is decoded at the CPE (Customer premise Equipment) into voice, video, data, all depending upon the packet tag type.
yes because a telephone installer is someone who install telephones in the inside of your home and the also do your lines. Our teacher taught us this.... yes there is a such thing as a telephone installer....
When first created, telephones gave many jobs to women, who had to connect telephone lines and use roller blades to quicky move. Secondly, it is obvious that telephones improved communications between people.
DDI (Direct Dial Inwards) telephones allow the user to have multiple telephone numbers, without the need to have expensive direct lines.
The decibel scale offers a logarithmic representation of signal strength, making it ideal for measuring and comparing the wide range of amplitudes present in telephone line signals. It provides a convenient way to express the vast differences in signal power levels encountered in telephone systems. Additionally, decibels allow for easy quantification and analysis of signal losses and gains occurring along the telephone lines.
A telephone converts electrical energy into sound energy. When you speak into the telephone, your voice is converted into an electrical signal that travels through the phone lines. At the recipient's end, the electrical signal is converted back into sound waves, allowing the listener to hear your voice.
Power lines and phone lines though using the same utility poles are two different sets of wires. Telephone wires carry their own power, separate from the power lines and are insulted while power lines are not. If the telephone wires are unbroken but laying on the ground the wires will not short to ground while an unbroken uninsulated power line will short to ground disrupting service.
The continent with the most wired telephones per person is Europe. http://cbdd.wsu.edu/kewlcontent/cdoutput/TR501/page17.htm
Fiberoptics
One may purchase two telephone lines from most telephone providers. Traditional telephone service providers will require you to install another stand alone telephone line, whether this be a private or a business line. For fiber lines the options are more complicated and involve using existing fiber telephone lines and a splitter. If it is simply an additional telephone number one needs, then most telephone service providers are happy to provide an extra number and the first extra number may be free of charge on private lines.
A business telephone system is any of a range of a multiline telephone systems typically used in business environments, encompassing systems ranging from small key systems to large scale private branch. A business telephone system differs from simply using a telephone with multiple lines in that the lines used are accessible from multiple telephones, or "stations" in the system, and that such a system often provides additional features related to call handling. Business telephone systems are often broadly classified into "key systems", "hybrid systems", and "private branch exchanges".
In the US, no. Intentionally cutting or filtering telephones lines or using a cell phone scrambler above a limited range is a violation of federal law/FCC act violation.
VTech is a well reviewed company. They have several telephone options that would work well in an office setting. Their cordless telephones even have a "walkie talkie" feature that allows interoffice communication without tying up your companies' telephone lines.