Dedicated Circuits
Dedicated circuits are large pipes used to transport digital voice and data signals from a business location to the respective
media requested. This service can handle a great deal of bandwidth, both voice and data, and has 24 channels to send information
over. Businesses can now lease a full T1 that will provide 1.54 Mb/sec of connectivity with the flexibility to assign the
available channels to voice or data. This is guaranteed throughput that can support up to 50 users comfortably, with each
user having their own bandwidth so as not to slow down other users.
DSLWest offers a full range of dedicated circuits starting with the T1 for as little as $425/mo depending on the length
of the service agreement and physical distance to the Telco office. A setup fee will be required.
A T-1 is going to be more reliable. The big plus is if it does go down, the SLA (Service Level Agreement) and QoS (Quality
of Service) negotiated with the provider mandates a quick response (as in a few hours) to start fixing any T-1 issues. Whereas
a DSL could go down for days and there is nothing you can do about it. With DSL there's rarely any mandated response times
for repairs.
Also a T-1 is usually more dedicated than DSL. For example the provider could have 200 customers or more out of one DSLAM...
but the T-1 is all for you. You will therefore see less latency and bandwidth problems with your T-1 than you would with
a DSL from the same provider. This may not be the case all over... but for most it is true.
What Is T1, DS1 Service? How does T1, DS1 work?
T1 or DS1 is a type of telephone service capable of transporting the equivalent of 24 conventional telephone lines, using
only two pairs of wires. T1 or DS1 uses two pairs of copper wires (four individual wires) to carry up to 24 simultaneous
conversations ("channels"), that would normally need one pair of wires each. Each 64Kbit/second channel can be configured
to carry voice or data traffic. .... One of the most common uses of a T1 lines or DS1 connections is an " Internet T1".
This connection is used to provide Internet access to businesses of all sizes. Available in over 95% of the lower forty-eight
states, Internet T1s have become one of the most popular ways for multiple users in one location to connect to the Internet.
The connection is available from dozens of providers with monthly prices for Internet T1 service ranging from $425. The
longer the T1 or DS1 circuit, the more you pay. Installation will vary depending on the company providing the T1 or DS1
, the type of T1 or DS1, and the length of the contract for service.
How Can One Data Circuit Turn Into 24 Telephone Lines?
Turning 24 lines into one and back into 24 again is a fascinating aspect of T1 or DS1. Here's how it works: At one end of
the T1 or DS1(the central office, for example), each of the 24 phone lines is encoded to a digital format, much like a CD
recording. Then, the packets of data from each line are transmitted in sequence into a single data stream. The device that
makes this process possible is called a "channel bank," which is a small digital telephone system with an input for T1 or
DS1 and 24 outputs, one for each telephone line. At the other end of the T1 or DS1 (the TAS, for example), another channel
bank reverses the process by separating the data stream into the original 24 distinct data packets representing each phone
line. The data is then decoded from digits back into the 24 telephone (voice) lines.
What's the difference between DSL and a DS1 or T1 line?
The primary difference between DSL and a DS1 or T1 is in the level of over subscription that occurs before the service reaches
the end user. When you purchase a full DS1 or T1 of Internet access, what you are generally getting is access to 1.544 Mbps
of transmission on the carrier's network, regardless of what other customers are transmitting and receiving. To better illustrate
this, let's assume that a carrier has capacity for 150 Mbps at any given time. This means that the at the most, they would
sell is 100 T1s. For every megabyte of capacity, they can sell one megabyte access to a customer. DSL works differently
- and costs less - because of over subscription. When you use a DSL connection your service runs through a piece of equipment
called a DSLAM, as opposed to running directly into the Internet. The DSLAM acts as a point of aggregation between the DSL
subscribers and the direct connection to the Internet (normally a T1 DS1 or DS3). Typical DSL over subscription rates run
from 4:1 to 25:1. Or in other words, for every one megabyte of demand coming into the DSLAM, a fraction of that is available.
The benefit to this design is that a DSL provider can provide a 2 Mbps connection for a fraction of the T1 or DS1 price.
The disadvantage is that when the DSLAM gets busy, your connection speed will slow considerably.
Our prices are very reasonable and we're nice people.
Tell us what you need - free quotes.