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T1 Frequently
Asked Questions
What is a T1
Line?
T1 is a term for a digital
carrier facility used to transmit DS-1 formatted digital signals at 1.544 megabits per
second. This is made up of 24 digital channels. This requires a digital connection
device (CSU/DSU {customer switching unit/digital switching unit}) to connect to four
wires to carry the information. A Full T1 should accommodate from
one to over 200+ users and other services.
Do I have to have a "full T1"?
No! T1 speeds run up to 1.5 Mbps
for a full T1. SelectNet also offers a Fractional T1, where you recieve only a portion of the maximum bandwidth.
This, of course, gives you the stability of the T1 connection (but for a lower cost) and allows for increasing bandwidth
in the future as needed.
How do I get a T1
line?
Just place an order with SelectNet.
The circuit between your premises and our POP is provisioned through the local
carrier and typically takes 3-4 weeks to install.
What hardware do I need to
use a T1?
To use a T1 you need at least a
router with a built in T1 link and a NIC (Network Interface Card) plus an internal or external CSU/DSU. SelectNet can provide
this equipment for you, either by purchase or lease.
What can I do with a
T1?
The T1 connection is a
dedicated link. Unlike ISDN and analog modem dial-up connections, the T1 connection
is up 24 hours a day. Because of this, you may run servers from your premises. But most of all, there are no phone company per call charges like with a
dial-up access account.
How many IP addresses do I
get?
As many as you can justify a
need for. Please read our Terms and Conditions for more information.
Can I get
more IP addresses later?
Yes, see above, but if you
upgrade to a larger block you may need to renumber.
Can I run my own
servers?
Yes, you can run your own
DNS, mail, or web servers.
Can I do my own DNS?
Yes. SelectNet also provides this service, and can
be your backup DNS for a small monthly fee.
Can I have a website with
T1 service?
The T1 service is simply a link to the Internet.
If you want to run your own web server, it will work fine with a T1 connection.
How am I billed?
You will be billed monthly in advance of service.
What do I do if my T1 line
goes down?
Call SelectNet customer support at 760-438-9555.
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