Monthly Archives: October 2006
Digital Voice
Has anyone heard of Digital Voice? I bet you’ve seen the commercials and flyers of a certain cable company promoting their Digital Voice. Did you realize that digital voice is just VoIP, the technology that’s been around for the past … Continue reading
What is an IP packet?
An IP packet is simply a the data you want transferred encapsulated in a frame or packet. The packet is typically broken up into smaller chunks to be transmitted over a T1 line. It’s kind of like writing a letter, … Continue reading
Data T1 Lines
First let me state there are no physical differences between a T1 for Voice and a T1 for data. They use the same physical medium, they have the same bandwidth, the same signal coding and the same frame format. The only … Continue reading
The cost of a T1 and how to get one?
We have talked a lot about what a T1 is and that the benefits are the increased available bandwidth that it gives your business over say, a buiness class DSL service. But where does it fit in on the bandwidth … Continue reading
u-law encoding – 8 bits in a DS0
The previous blog explained why we have 8 bits in a DS0, here we’ll explain how we get these 8 bits. When your voice is digitally sampled the amplitude or how loud you are speaking is captured, this happens 8000 … Continue reading
T1 frame rate and DS0 size
How did the 8KHz frame rate and the 8 bits per DS0 come about? I’ll take the easy one first - Why 8 bits per DS0? For digital or telecom engineers 8 or any multiple of 2 is a perfect number. It’s very easy … Continue reading