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.
- Another type of digital phone line is a VoIP line (like I said earlier, Voice over Internet Protocol). This allows you to create virtual phone lines on your business PBX that use your business Internet connection to connect calls over the web via network of Internet VoIP servers that your VoIP provider runs.ust looking at picking a phone line for my business (size is 10 employees) and wondered what is the difference between gettign a digital or analogue phone line as the company trying to sell me it wasn't very helpful. 1 following. 4 answers 4. Report Abuse.