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Questions tagged [t1]

31 questions
44
votes
5 answers

What is a T1 in modern terms?

I often hear this term used "We have a T1"... used on SF and other sites. I googled it and it seems like an ancient technology possibly related to frame relay but I'm not sure. Maybe things have changed and the term means different things…
hookenz
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9
votes
5 answers

What benefits do a T1 line provide over "business-class" cable?

We are in a semi-rural area, so our internet connection options are pretty limited. We currently pay about $500/month for a dedicated T1 line at 1.5/1.5 Mbps from the local ISP. In comparison, Comcast is offering a 16/2 Mbps "business" internet…
Sysadminicus
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5
votes
6 answers

What's so special about leased lines (T1, DS3, etc)

I understand the theory of having "dedicated bandwidth" but why would a small/medium business purchase a leased line for access to the internet? In today's day and age residential grade connections are more than sufficient in speed and reliability.…
user974896
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4
votes
2 answers

Should Server Internet Connection be based solely on Internet Speed?

We are running our own server and our country's ISP is telling us that we should run it with their T1 Copper Line with 2mb DL & UL. Right now it is running on a Fiber Line with 8mb DL & UL. They say that the T1 would be better since it is connected…
Jo E.
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3
votes
1 answer

Asterisk can't make nor receive calls through a T1 PRI interface to a Cisco 2430 router

I have an Asterisk 1.8 phone switch with a Digium T1 card. It runs using 5ESS PRI through our present phone provider without a problem. However, we're contemplating switching to Time Warner's fiber service (not TWTelecom) and then it fails with ISDN…
Kuba hasn't forgotten Monica
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3
votes
1 answer

Can't configure frame relay T1 on Cisco 1760

I am trying to configure a data T1 via a Frame Relay. The ISP provided me the following information: 1. IP address 2. Gateway address 3. Encapsulation Frame Relay 4. DLCI 100 5. BZ8 ESF (I think the bz8 was supposed to be b8zs) 6. Time Slot (1 al…
sonar
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3
votes
3 answers

T1 versus Cable Modem

We've been using T1's for years and never changed the connection to a faster Cable Modem. I am concerned about support, return to service. I cannot find in legalese Cable vs T1's FCC Regulations SLA's. I'm very interested in what the current…
user58345
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3
votes
5 answers

Do I need a VPN to secure communication over a T1 line?

I have a dedicated T1 line that runs between my office and my data center. Both ends have public IP addresses. On both ends, we have AdTran T1 routers which connect to SonicWall firewalls. The SonicWalls do a site-to-site VPN and handle the…
Seth
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2
votes
2 answers

VOIP T1 vs Fiber

Currently using a T1 (1.544Mbps) for what I think is pricey sum of 500 a month. Found I could get 30/30 fiber for about the same price. Would there be any downside to switching to fiber, I would think it's better, since we can merge VOIP with daily…
JustAGrump
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2
votes
2 answers

Can PRI be ran along side browser/VPN data on a Fiber Line?

Our business is looking to have a fiber line installed in place of our current set up of 3 T1 lines and a DSL line. Before I can eliminate all of the T1 lines, I need to know if the PRI, that I have running on it's own T1 for our phone system, can…
Joe JMC IT
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2
votes
2 answers

Cisco Serial vs T1/E1

I have a router and I have the chance to receive the WAN connection either from a Serial port (Smart Serial) or T1/E1. I have both cards for Serial and E1/T1 interfaces. I really don't know what are the pros/cons from one to another. Can anyone…
Andre
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2
votes
1 answer

Questions and opinions of a Cable line with a back-up T1

My company currently has only a Covad T1 that connects the main office to the internet. This line is mainly for our billing office (located across the state) to connect to us for our Terminal Server. Our future plans for our main office include…
Tablemaker
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2
votes
1 answer

Simple point to point Cisco Router config for a T1

We recently started leasing a small new site and part of the agreement was to have the owner of the building provide a point to point link between our main site and this building and we would purchase configure and maintain the hardware. The job…
TrueDuality
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2
votes
5 answers

Troubles setting up my new T1

I'm more of a web developer kind of guy with limited knowledge of networks, so if anyone can point in the right direction, I would be grateful. I am replacing my satellite connection with a T1 I got for a good deal thru the phone company. I also…
user39964
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1
vote
0 answers

Adding old T1s to a new configuration

As embarrassing as it is, my facility is running on two T1 lines. One connects us to AT&T and the other connects us directly to our corporate facility. This is a mirror of an old system we once had. The old T1s used for the old system are still…
Brenex
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