Pegmatite veins, which can form sheets, lenses, or pipes, are often several hundred meters thick and several kilometers long and can be traced at depths of more than 1 km. They occur in clusters that usually cover an area of up to tens of km 2 and that contain from several tens of individual veins to several thousand.
What is a digital telephone line? A digital telephone line or digital trunk is a type of telephone line that carries voice and/or data by using digital sampling.1 vs. PRI. PRI divides a T1 digital signal into 24 channels of 64 Kbps capacity per channel. 23 of these channels can be assigned as one telephone call each, the equivalent of having 23 separate telephone lines. The 24th channel is used for signaling information and special features such as caller ID.
Analog is also rather limited in terms of mobile phone technology. With a cordless device (such as a mobile or home phone), analog is limited in the range that it is able to pick up (of course, that more or less depends on the environment in which one uses the phone).Digital phones allow more users to use their mobile phones within a single area of coverage.nalog phones use technology that translates audio or video signals into electronic pulses; digital phones use technology that translates audio or video signals into binary code. 2. Analog phones have a substantially higher sound quality; digital phones have a slightly clearer sound.